“The Biggest Loser” (8 p.m., NBC): So did they keep the weight off? More than 40 former

“The Biggest Loser” (8 p.m., NBC): So did they keep the weight off? More than 40 former contestants from the first seven seasons of “The Biggest Loser” gather to talk about how their lives are going now.

“Glee” (9 p.m., Fox): Oh, we can hardly wait to see how this turns out: On a new episode of “Glee,” Kurt gives Rachel a makeover to impress Finn — but he may have ulterior motives.