Most of the shows I have loved in recent years have died the death long before they were finally put out of their misery.
Deep Space Nine
The X Files
I fear for the Simpsons. There have been some really ropey, unfunny episodes recently. And then there's Deadwood- which is showing alarming signs of being all washed up after a single season.
And here comes Lost, which seems expressly designed to be so open ended it can run forever. I watched the first double episode and fidgeted. The whole point of it is delay- deferred gratification. Do I have the stamina to stick with it for seven, eight years until all becomes clear? I doubt it. I know from sad experience that by the time we get there the whole concept will have become so jaded, the plotlines so tangled and far-fetched, that I will long since have ceased to care.