Things heat up for racing fans as the first NASCAR race of the year revs up at Daytona International Speedway. Fans were invited to use technology to vote on the format of this year's race, which features 22 of the sport's top drivers. Fox, 7 p.m.
Harry Potter and the Chamber of Secrets
When Harry, Ron and Hermione return to Hogwarts School of Witchcraft and Wizardry for another year of studies, they discover a monster is on the loose. Harry and his friends join forces to slay the malevolent creature. ABC, 7 p.m.
American Ninja Warrior
The best of the Southwest face off against a gruelling obstacle course in this thrilling reality TV series. Competitors ranging from trained athletes and police officers to schoolteachers and even granddads compete for cash. NBC, 7 p.m.
Morgana comes up with a murderous plan as darkness creeps into Camelot. She uses her puppet queen to put her plan into motion; however, things get complicated when stablehand Tyr Seward gets caught in the crossfire. Space, 7 p.m.