You better, you bet

Pete Townshend may no longer be a force on the pop charts, but he’s still hip enough to associate himself with one of TV’s coolest shows. The Who guitarist teamed up with composer Nathan Barr for the song “It Must Be Done,” which will be featured on a new episode of “The Americans.” It’s the first time that Townshend has ever written for the small screen.

9 p.m. Wednesday, FX

Neal Justin