So You Think You Can Dance The contestants this time around will be much younger — between the ages of 8 and 13 — as this competition kicks off its 13th season. Dance star Maddie Ziegler, 13, joins Paula Abdul, Jason Derulo and Nigel Lythgoe at the judges’ table, and Cat Deeley returns as host. 8 p.m. Fox
Houdini & Doyle Emily Hampshire (“Rookie Blue”) guest stars as a traveling medium who confounds Houdini and Doyle (Michael Weston, Stephen Mangan) in this new episode of the mystery drama. 9 p.m. Fox
Top Gear Former “Friends” star Matt LeBlanc joins British TV...