It’s too early to know for sure; there are two days left for last-minute packages to be delivered, wrapped and placed under the tree in time.

So, while it’s hard to say whether there will be any widespread panic come Sunday, there are some early indicators that the system is reaching capacity.

In perhaps the biggest demonstration of holiday stress, a FedEx delivery driver was caught on camera tossing a box containing a new computer monitor over a customer’s fence. The owner claims he or she was at home at the time, with the front door wide open. After nearly five million people watched the security footage on YouTube, FedEx responded by posting an apology on YouTube. (Only 193,000 people have watched that.)

Then there are the canceled orders at Best Buy, which ran out of heavily discounted merchandise and was forced to void some orders that consumers had placed last month. A few more reports have surfaced from other retailers, such as Sears, which was failing to keep up with orders that were placed online for in-store pickup.

But perhaps this sort of thing is to be expected when you see 15 percent year-over-year online growth in online shopping.

ComScore reports that e-commerce spending for the first 48 days of the holiday season has reached $32 billion, jumping 15 percent over last year. Last week alone, ComScores said, four individual days surpassed the $1 billion mark, to help set a weekly record of $6.3 billion.

On a positive note, retailers’ Web sites have been able to keep up with the demand. Compuware, which has been monitoring the Web and mobile performance of the top 50 retailers, reports that there have been no prolonged site crashes.

At this point, most online purchases won’t get to people in time for Christmas, although Amazon is offering some expedited shipping options for consumers in some markets as late as Saturday.

Besides stress on the retailers, one other choke point in the system has been delivery.

This week will be the busiest week of the year for UPS, which estimates that it will deliver more than 120 million packages worldwide. In particular, it was anticipating that today would be its busiest day, with more than 26 million packages shipped — which breaks down to about almost 300 a second.

UPS’s close competitor, FedEx, previously predicted that Dec. 12 would be the busiest day in its nearly 40-year history. The company was forecasted to ship more than 17 million orders that Monday, which was double its daily average volume.

That’s Target’s motto this holiday season, as it promises on-time Christmas deliveries for online orders placed by Tuesday.

But some retailers are being a little more jolly.

In today’s fast-paced digital world, procrastinators are being rewarded, and will be able to shop online as late as Thursday and still get presents safely underneath the tree in time for Christmas.

For example, Wal-Mart will rush packages to your door for orders placed as late as Wednesday; Amazon is offering regular free two-day shipping as late as Wednesday; Zappos is offering free shipping for orders made by 1 pm PT on Thursday; and Toys “R” Us will go as late as noon on Thursday for express shipping.

There are exceptions, of course, and Amazon is a big one.

For orders placed on Thursday, one-day shipping will cost shoppers $3.99 an item; for items ordered on Friday, only Amazon Prime members will be able to pay $9.99 an item for on-time delivery; those in 11 U.S. cities can wait until Saturday, at which point it will cost $3.99 per item to ship by local express.

Amazon Prime is the e-commerce company’s membership service; it charges $79 a year for free two-day shipping and other perks, like free streaming videos.

One of the biggest limitations for the holiday is the logistics of getting a package from a distribution center to someone’s home. For example, FedEx won’t be running on Christmas, but will be running partial operations on Christmas Eve, a Saturday.

At this late point in the year, physical retailers shine.

For example, Apple’s shipping cutoff date is on Wednesday, but it will allow customers to order online and pick up in the store until 11 pm on Friday. On Christmas Eve, many of its stores will be open until 6 pm. Toys “R” Us and Best Buy are also offering free in-store pickup, adding late hours to accommodate the busiest of people. Best Buy will be open until 3 pm local time on Dec. 24, and Toys “R” Us will will stay open for 112 hours straight, starting at 6 am Tuesday, Dec. 20 and closing at 10 pm on Saturday night.

Online retailers can’t compete with store hours but, conversely, stores have had a hard time competing with the deals online, especially earlier in the season.

This holiday period, Amazon prompted consumers to consider the moral dilemma of shopping in stores versus online, when it kicked off a Dec. 10 promotion that offered $5 off to consumers as an inducement to walk out of stores empty-handed. EBay fired back with its own promotion, which gave online shoppers a $10 coupon to return to stores.

To be sure, online retailers will have something to celebrate on Sunday.

ComScore, which is tracking online spending habits this holiday season, said $30.9 billion had been spent online during a 46-day shopping window that ended Dec. 16, marking a 15 percent increase over last year.

Spending last Friday — dubbed Free Shipping Friday — hit $1.07 billion; it was the fourth day to surpass the billion-dollar mark this year. Still, Cyber Monday — the Monday following Thanksgiving — appears to rank as the heaviest online spending day of the year for the second consecutive season.

Stay tuned!

Plans are underway for a Hulu-only mini-show slated to run on the video site daily, offering up zippy commentary about TV and pop culture.

Some limited details: The show, which is casting now, will run five minutes an episode Monday through Friday. It’s supposed to offer “a quick and humorous survey of the past 24 hours of Media and pop culture.”

In other words, think of all of the TV shows that do something like this already–pretty much everything that runs on E! and half of what runs on VH-1–and shrink it down to a bite-size Web creation. They’re not reinventing the wheel here.

You can glean a tiny bit more about the show, via a casting call ad, at the bottom of this post. An actress who auditioned last week tells us the sessions were “mobbed.”

(Of course! But note that anyone who does get the gig won’t be hitting the jackpot–$1,000 a week, leave your SAG card at home.)

I’m assuming that “HD Films,” the show’s producer, is the same studio that is already producing “The Jace Hall Show,” a Web show about videogames, which runs on Hulu and other sites. Jace Hall is listed as a producer on this one, too.

Hulu rep Elisa Schreiber declined to discuss the show, telling me via email that “we’re not sharing any details because it’s still in the early stages.”

So why do we care? Because Hulu’s primary purpose in life, for now, is to provide a place for people to watch bona fide TV shows on the Web–and primarily shows from its three broadcast TV owners: News Corp.’s Fox, GE’s NBC and Disney’s ABC. (News Corp. also owns this Web site.)

But it has also been dabbling in Web originals over the past year or so: See “The LXD,” and “If I Can Dream.”

Hulu now has an original show in the works starring Whitney Port (who was on “The Hills,” Google tells me), designed to promote Mattel’s Ken doll (really). And there’s something coming from Ford and the producing team behind “The Amazing Race.”

The through-line behind all of this stuff: Webby takes on reality shows, which are cheap to produce for conventional TV and  even more so on the Web (again, note the union-free note on the casting info below).

Nothing revolutionary, but it does point to an interesting question: At what point does the line between the best Web video and mediocre TV disappear?

No one thinks the Web is going to replace TV at its best–expensive original fare like “Lost” or “Glee,” or big-time events like the Super Bowl and the Oscars. But there’s not that much high-end, original stuff on TV.

And lots and lots of your programming grid is filled with repeats, which the Web can do just fine. And then lots of less exciting, and less expensive, fare like “The Biggest Loser” and the like, which the Web hasn’t done. Yet.

But there’s no reason that it couldn’t. And when and if that starts happening with some frequency, there will be even less reason to keep paying for expensive TV packages….

Here’s the text from the casting notice (click to enlarge):