17:07 – Inspired by Penny’s frozen yogurt date with Captain Hammer, Billy buys and offers Penny frozen yogurt at the Laundromat. In this scene you can faintly make out the name of the company “Berri Good” on the container which had been taped over in previous shots. Berri Good is apparently a real frozen yogurt company in LA.
20:14 – Moist enters the room trying to open a jar but can’t because his hands are moist.
26:10 – In the framed picture of Penny that Dr. Horrible has, she is surrounded with leafy greens, a node revealing that he had taken the picture without her consent and possible from behind a bush.
26:28 – While Dr. Horrible is sitting in his big villain chair, two copies of “Harry Potter and the Deathly Hallows” can be seen on his bookshelf next to him. There’s also a Wii remote.
26:30 – We finally see a more visible shot of the symbol on Dr. Horrible’s labcoat. It is a Caduceus.