Trotting down to Ponyville
Princess Twilight Sparkle (no relation to Princess Leia) struggles to come to terms with the fact that she’s part of equestrian royalty in the season finale of “My Little Pony Friendship Is Magic,” the animated series beloved by children and stoners alike. 9 a.m. Saturday, Hub Network.
Mother’s little helpers
Here are two very different ways to celebrate Mother’s Day. Visit www.acorn.tv anytime to watch four star-studded British dramas — “Emma,” “Jane Eyre,” “The Woman in White,” “Lorna Doone” — or raise a nonalcoholic beer to Murphy Brown in a six-hour marathon that kicks off with “Murphy Brown: A 25th Anniversary Special.” 3 p.m. Sunday, Encore Classic
Only a mother could love them
Cartman and company pay respects to their mothers the only way they know how in a four-hour marathon of “South Park” repeats featuring unbelievably patient moms who always seem ready to bake their kids a chicken pot pie. 8 p.m. Sunday, Comedy Central