Find out what's on TV this week.

On Dec. 19: Celebrity IOU

• What to watch on Mon. Dec. 19
• What to watch on Tue. Dec. 20
• What to watch on Wed. Dec. 21
• What to watch on Thu. Dec. 22
• What to watch on Fri. Dec. 23
• What to watch on Sat. Dec. 24
• What to watch on Sun. Dec. 25