OST Entertainment

OST Entertainment (On Screen and Television Entertainment, commonly known as CTRS Entertainment standing for Commercials, Television, Radio and Sinema (misspelled Cinema)) is a Transmanian-based independent format, entertainment, radio and television production company originally formed by producers Ian Rowan Bradshaw and Samuel Cavalo in 1971 which is known for producing and creating newer and classic television game show and documentary programming for ATN, ATN Two, ATN Three, TBN, TV11, Sky TV, TBN2, TBN3 and Network Fifteen until 1996. The company is later known for creating and producing television game show programming since 1973.