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WRBT

1974-1979

1979-1981

RBT

1981-1982

1982-1989

1989-1992

1992-1995

R Comedy Network

1995-1998

1998-2008 After 34 years of broadcasting, R Comedy Network was replaced with Nifgif

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2008-2017

July 2017-October 2017 The network all of sudden changed their target demographic to Young Girls on July 14 2017 due

to ratings decline. The network shut down on October 2, 2017