While the final episode of ABC’s “Lost” got all the attention last night, many were dissatisfied with the ending, which seemed to suggest the castaways were all dead the whole time.

Which does make sense for the convoluted television series, since it started with a plane crash.

But here are videos of BoomTown’s favorite TV finales, including my personal fave from HBO’s “Six Feet Under.”

(The image above is the last one from “M.A.S.H.,” by the way, which was one of the most watched, but way too weepy for me.)

Seinfeld (it was about nothing!):

Friends (perfectly simple):

The Sopranos (Tony was whacked!):

The Mary Tyler Moore Show (the classic classy ender):

Six Feet Under (they all die–eventually):

Here are some other options, via Jimmy Kimmel’s post-finale special. A little disappointing that there’s no Bobby Ewing dream season reference here, but whatever. And if the YouTube link here goes dead, let me know and I’ll try to find you another one.

For fans of the soon-to-end mysterioso television show, “Lost,” two of the top writers on “The Late Show With David Letterman” on CBS (CBS) did a really funny spoof of what happens to the smoke monster after the series is all over on May 23.

As an added plus, “Lost” executive producers Damon Lindelof and Carlton Cuse were on Letterman last night to render the “Top Ten Spoilers for the ‘Lost’ Finale.”

My fave: “Due to pressure from the Internet, we’ve been forced to include Betty White.”

Enjoy the videos:

The Scottish woman who went from unknown to become the Internet’s most watched video failed to win first place in the final of the television show, “Britain’s Got Talent” this past weekend.

Instead, a noisy dance troupe called Diversity won, putting Boyle in second place.

Boyle’s chances had been diminishing over the past week, since the British tabloids have been piling on and tarnishing her fairytale reputation, reporting on odd public outbursts by her due to the pressure of her instant stardom online and off.

Their nickname for her: SuBo.

And, sadly, there are now reports that Boyle has been taken to a mental facility to get some rest and relaxation.

In any case, there’s no question Boyle’s been a treat to watch online and she deserves that time to recover from impact of the media frenzy around her.

It’s likely she’ll be singing again publicly soon–but, until then, here is her performance in the finale (and below it is Diversity, the winner):

So says Nielsen, via its newest “Three Screen Report.” The tracking service says more Americans are watching TV than ever before–up 1.2 percent in the last quarter–and they’re spending more time watching TV, too–that’s up 1.9 percent, to a staggering 153-plus hours per month. Of course, the same holds true for Web video, which is growing much faster.

Here’s how the data break down. Total number of viewers (click to enlarge):

Time spent viewing (click to enlarge):

Don’t be fooled: As much as the blogosphere likes to describe the TV guys as clueless dummies, they’re well aware that they’re now competing with the likes of Hulu and Google’s (GOOG) YouTube for their viewers’ time. That’s why Hulu, the JV between GE’s (GE) NBC, News Corp.’s (NWS) Fox, and now, Disney’s (DIS) ABC, remains such a controversial site within the industry–one camp thinks it’s the best way for the networks to position themselves against the eventual move to the Web, and the other thinks they’re hastening their own demise by training viewers to expect free, on-demand access via the Web.

We may get a slightly better sense of what advertisers think about this soon. It’s “upfront” week in New York, which means that all the broadcast networks–CBS (CBS), NBC, Fox and ABC have begun selling their wares to advertisers for next year. Prognosticators are betting that upfront sales could be down by 15 percent or so this year, but they’re assuming that most of that decrease has to do with the miserable economy, not a full-blown move–or “secular shift,” as the smart guys like to say–away from TV and to the Web. If that decrease gets much bigger though, it could mean something else is afoot.

Enough with the serious! Here’s the excellent celebrity singalong from the finale of “30 Rock,” which aired last week. NBC only allows Hulu to keep episodes of the show on the site for a limited time (expect to see more of this restriction, not less), so this may only work for a few weeks. Enjoy: