Penny utters observation.
Dad rejoins with witty riposte.
Penny: Uhhh, you watch Big Bang Theory??
Cue inordinately pleased smiles from parental units.
Penny: Next weekend you’ll tell me you’ve been watching Downton!
Dad: <<supercilious, cut-glass British accent>> What… what is a week-end?
(In other news, there’s hope for America yet if a show as intelligent and adroit as BBT is in it’s sixth season.)