Getting your player ready...
“THE BIG BANG THEORY”
7:30 p.m., KCNC-Channel 4
Following last week’s guest shot by Sara Gilbert, tonight’s episode features an appearance by Laurie Metcalf. Both are “Roseanne” alums, along with “Big Bang’s” Johnny Galecki.
ALSO
“MYSTERIOUS HUMAN HEART” 8-10 p.m., KRMA-Channel 6
A two-part documentary by filmmaker David Grubin examines how the heart works and what’s involved in keeping a regular beat going. The tale of the perpetual pumping machine is told through the stories of heart patients.
