TV highlights: 'The Fall' returns for Season 2 on Netflix

(All times Eastern.)Making its premiere in a new time slot, "Constantine" (NBC at 8 p.m.) has John risking his life by summoning a demon into himself in order to fend off a vicious attack.SERIES PREMIERE: In the new comedy-clip show "World's Funniest Fails" (Fox at 8), a celebrity panel made up of Erik Griffin, Jessimae Peluso and Josh Wolf watches viral "epic fail" videos from YouTube and then breaks down whether they're really that funny.