TiVo Guide Week of March 21, 2011 *spoiler alert*

"Pretty Little Liars" In the first-season finale, the girls recruit an unexpected ally to assist them in stopping "A." Monday at 8 on ABC Family.

"Hot in Cleveland" Elka finally goes on trial, but she'll have to rely on someone other than her lawyer to stay out of jail. Meanwhile, Joy does a favor for the First Lady of Ohio (Amy Sedaris) that makes the wrong kind of headlines. Wednesday at 10 on TV Land.