TONIGHT'S MUST SEES

“THE JAY LENO SHOW” DEBUT, 9 P.M., NBC

Few shows in TV history match the impact as this one, filling five primetime hours every week.
The emphasis will be comedy. Leno start with his monologue and tonight plans to include “Headlines,” the oft-hilarious collection of miscues and misprints; he's had a summer to store up material for both.
There's one sit-down guest per hour; tonight, that's Jerry Seinfeld. And there will only be two or three songs a week, usually with fresh combinations; tonight has Jay-Z, Rihanna and Kanye West.
Leno also has an ever-growing batch of comedy correspondents, plus a celebrity race-car track. Seinfeld probably won't try it, he says, so Drew Barrymore might be the first.

“AMERICA'S GOT TALENT,” 7-9 P.M., NBC

After being a ratings hit all summer, this show should give Leno a boost during its last week.
Tonight, the final eight acts perform and viewers vote. Then – after a pause Tuesday for the “Biggest Loser” opener – the winner will be named on Wednesday's finale.

For more of today's best bets on the small screen, check out the blog and column at MikeHughes.tv.