This was another funny episode that really leaned into Sheldon's quirks and made them the highlight. His total obsession with the forgotten flash drive and the long phone call with Penny was peak Sheldon comedy.
Seeing Summer Glau play herself was a nice treat, even if I haven't watched her Terminator show. I also liked how the episode showed Raj's alcohol thing is clearly more psychological than anything else. The guys fighting over who gets to talk to her on the train created some solid laughs too.
7/10: Not the strongest episode of the season, but still very watchable and entertaining.