I saw this on another board and thought it would be of interest for all of you who were recording "Lost."
LOST show timing - and why you're missing those last minutes
In the old days it was simple. A show scheduled from 8-9PM actually ran from 8 to about 8:58 PM. Then came the local commercials and station ID up until exactly 9 PM when the next show started. It was that way for years - simple and unviolable.
Back in the greedy '90s, someone at some network decided that if they moved the station break to around :45, they could run the 8 o'clock show right into the 9 o'clock show with no breaks at all - NO TIME TO CHANGE THE CHANNEL! Surely you'd be hooked into the 9 o'clock show and just stay tuned for the whole night.
Next, I believe it was NBC that decided to skew some of the timings of its Thursday shows. By letting FRIENDS run a little long - sy until 8:32 or :33, they could actually increase the number of commercial units they could sell to advertisers at a premium. The commercials would BE WITHIN FRIENDS. So even though the show was still timed to be a half-hour, they simply ran MORE commercials, making the show run late. These extra commercial minutes are "borrowed" from the show that follows, meaning that half-hour show will have fewer commercials. And since they couldn't get the higher price-rates for those anyway, it's more beneficial to them to stick them in the FRIENDS block and make more money.
The opposite happened at 10:00. E.R. was also a big hit, so in order not to run into the affilliates' newscasts, they started E.R. at about 9:58 or 9:59 PM, again giving them that extra minute or two WITHIN E.R. that they could sell at a premium.
It's all about money these days.
So now that ABC has a hit with LOST, we're discovering that they aren't confining themselves to one hour. Over the last few weeks, since it's been deemed a hit, the show regularly runs past 9:00 (ET), usually until about 9:02.
So for those of you setting timers out there to record the show, you'd so yourselves a favor by allowing a few extra minutes past 9 to get the whole thing. The time prior to the show belongs to the local affiliates, so you're not going to be in danger of the show starting early. It will normally start exactly at 8. It's the ending past 9 that seems to be causing the problems.