Karen is cracking up on "Will & Grace" Thursday and the laugh is on James Earl Jones when the screen legend is upstaged by Jack. Jones is a force to be reckoned with Thursday at 9 pm on NBC.

And "Extra" has a sneak peek at next week's special guest star on "Friends." Christina Applegate is back as Rachel's snotty sister. Applegate says, "This is the last year, and I had to come back."

So what can we expect from the shows final episode? Matt LeBlanc says your guess is as good as his. He says, "Everybody thinks we know, but we're in the dark. We only get the scripts a week before, right before we start shooting."

The countdown begins every Thursday night at 8 p.m. on NBC.