Paramount Television Service

The Paramount Television Service (PTS or PMTS for short and also known as Paramount Programming Service) was the name of a proposed but ultimately unrealized "fourth television network" from the U.S. film studio Paramount Pictures (then a unit of Gulf+Western, now owned by Paramount Skydance). It was a successor to the earlier Paramount Television Network of the 1950s, and forerunner of the later UPN (the United Paramount Network), which launched 17 years later.

Source: Wikipedia — Paramount Television Service (CC BY-SA 4.0)