TV highlights: Lancelot warns Mary Margaret about King Arthur's motives on 'Once Upon a Time'

All times Eastern.Comedian Gabriel Iglesias hosts "Mega Fluffy Weekend" (Fuse at 1:30 p.m.), a 12-hour marathon featuring "The Fluffy Movie," episodes of "Fluffy Breaks Even" and stand-up specials from Rick Gutierrez and Gina Brillon.