Adventure Time (Cartoon Network, 7:30 p.m.) — Finn and Jake meet a horse with the power to make sad people happy. Pleasepleaseplease let it be Li’l Sebastian pleasepleaseplease.
How I Met Your Mother (CBS, 8 p.m.) — “Robin desperately searches for something she once buried in Central Park.” If it’s your copy of Ghostbusters: The Video Game, because of that goddamn Central Park cemetery level, wayyyyyyyyyyyyyyyyyyy ahead of you, Robin.
Rihanna 777 (Fox, 8 p.m.) — Last year, Rihanna invited a bunch of journalists onto her private Boeing 777 jet to attend seven shows in seven counties in seven days with her. They complained a lot, and she came across as an evil genius. This is an entire special about that.
RuPaul’s Drag Race (Logo, 9 p.m.) — People I respect swear by this show, meaning THEY F*CKING LOVE IT. Apparently tonight is the season finale. If you know what channel number Logo is, all the more power to you.
Rectify (Sundance, 10 p.m.) — Sundance picked up Rectify for a second season, so tonight’s episode, about Janet heading into town with Daniel, won’t be its antepenultimate, which is totally a word I didn’t have to Google.
LATE NIGHT GUESTS: John Krasinski, Kerry Washington, and James Blake on Letterman; Magic Johnson and Fall Out Boy on Leno; Edie Falco and Rod Stewart on Kimmel; Isla Fisher and Jim Rash on Ferguson; Steve Martin, Jenna Fischer, and Steve Martin on Fallon; Keith Urban and Guillermo Diaz on Conan; Christiane Amanpour on Stewart; and Robert Caro on Colbert.