7:30 | "Rules of Engagement," CBS (season finale)
8 | "Obese & Expecting," TLC (special)
8 | "Grey's Anatomy," ABC (season finale)
8 | "Person of Interest," CBS (season finale)
8:30 | "Community," NBC (season finael; new eps air at 7 p.m. and 8 p.m. as well)
9 | "Birth Moms," TLC (special)
9 | "Scandal," ABC (season finale)
9 | "Awake," NBC (season finale)
9 | "The Mentalist," CBS (season finale)

Friday, May 18
7 | "Nikita," CW (season finale)
7 | "Who Do You Think You Are?" NBC (season finale)
7 | "Shark Tank," ABC (season finale)
8 | "Supernatural," CW (season finale)
8 | "Grimm," NBC (season finale)
8:30 | "TRON: Uprising, Beck's Beginning," Disney (special; airs again at 6 p.m. May 21 on Disney XD prior to June 7 series premiere of "TRON: Uprising" on Disney XD)

Saturday, May 19
7 | "Kiss at Pine Lake," Hallmark (movie premiere)

Sunday, May 20
9 a.m. | "Movie Talk with Peter Bart," Encore (season 1 premiere)