Episode 177 is Mork and Mindy (1978)
Mork is sent to Earth to explore its traditions and, along the way meets Mindy.
We do get a Arthur 'Fonz' Fonzarelli (Happy Days)and a Laverne DeFazio (Laverne & Shirley ) cameo
Episode 176 is Prescription: Murder Columbo (1968)
A psychiatrist uses a patient he is having an affair with to help him kill his wife, but his perfect alibi may come apart at the hands of a seemingly befuddled LAPD lieutenant.
Episode 175 is Vega$ (1978)
Las Vegas private eye Dan Tanna probes the murder of Marilyn , a teenage prostitute who ran away from home because she didn't get along well with her mother Loretta's new husband Merle.