At the end of the episode Chuck versus the Beard, Chuck & Morgan are playing the light gun game Duck Hunt for NES on an LCD TV. Light gun games require a CRT TV to be able to use the light gun accessory.
When Casey attaches his cell phone to hack his way past the lockers, his cell phone shows that he is running "ACCESS_DENIED_01.wmv".
At 33:56 the shadow of a boom mic is seen on Chuck's back in the lower right corner.