“Red Nose Day” (9 p.m., NBC): Break out the crimson snouts. It’s “Red Nose

“Red Nose Day” (9 p.m., NBC): Break out the crimson snouts. It’s “Red Nose Day” — a programming event that blends comedy and music to raise funds for needy young people. The talent lineup includes Will Ferrell, Jennifer Hudson, Jack Black, Sam Smith, Adam Levine and Martin Short.

TV listings, B6