Kerry Washington, Guillermo Diaz Kerry Washington, Guillermo Diaz

Scandal  was the sole show to improve Thursday on what was a down night overall.

The drama returned to 7.8 million viewers and a 2.8 in the adults 18-to-49 demographic, up two tenths from its last new episode to tie a series high. Lead-in Grey's Anatomy (8.1 million, 2.7) was down a tenth.

Get the scoop on 39 must-watch finales

Facing the NFL draft, every show on CBS and NBC hit season or series lows, including The Big Bang Theory (14.4 million, 4.2), which fell a full point, but was still the night's top show.American Idol

(11.1 million, 2.7) also dropped to a series low, while Glee (5.2 million, 1.8) fell three-tenths.The Vampire Diaries' backdoor pilot "The Originals" drew 2.2 million viewers and a 0.9, down a tenth from its last new episode. Beauty and the Beast (1.3 million, 0.5) slipped a tenth as well.8 p.m.
The Big Bang Theory 14.4 million (4.2); Two and a Half Men 11 million (2.8)ABC: Wife Swap 3.4 million (1.1)Fox: American Idol 11.1 million (2.7)NBC: Community 2.4 million (1.0); The Office (R) 1.8 million (0.9)CW: The Vampire Diaries 2.2 million (0.9) 9 p.m.
Person of Interest 13 million (2.4)
ABC: Grey's Anatomy 8.1 million (2.7)Fox: Glee 5.2 million (1.8)NBC: The Office 3.1 million (1.7); Parks and Recreation 2.9 million (1.5)CW: Beauty and the Beast 1.3 million (0.5)10 p.m.
Elementary 10 million (2.0)ABC: Scandal 7.8 million (2.8)NBC: Hannibal 2.4 million (1.0)