Big Brother, 8 p.m., CBS
I accidentally watched 11 minutes of this one night last week. I am that much dumber.
Summer Olympics, 8 p.m., NBC
Tonight, “Track and field, finals: women's 200m, women's 400m hurdles, women's long jump, men's 110m hurdles; diving: women's platform qualifying; beach volleyball: women's final.” I love the long jump. It is one of the most amazing things to me, how far they can jump.
Dallas, 9 p.m., TNT
Season finale (already been renewed): “The Ewing family band together as a loved one faces a medical crisis; Christopher and Elena learn that not everyone is what they appear to be; secrets from the past are revealed.” Just like 1980!