The episode features the second and last appearance (on the original series anyway) of writer Bill Dial as the station engineer, Bucky. Also, Ross Bickell, who plays the manager of WPIG, was married to Loni Anderson at the time. Since she was having an affair with her co-star Gary Sandy, it must have made for an awkward shoot.
Update: I found the missing shot and put it back in. Apparently CBS cut it from some repeats because of the drug reference.
Cold Opening and Act 1: