Complex sentence: He is known for playing Brad Majors in the 1975 cult classic "The Rocky Horror Picture Show", replacing Peter Scolari as Mr. Tyler in the sitcom "What I Like About You", and playing mayor Randall Winston in the sitcom "Spin City".
Split into simpler sentences: He is known for playing Brad Majors in the 1975 cult classic "The Rocky Horror Picture Show". He replaced Peter Scolari as Mr. Tyler in the sitcom "What I Like About You", as well as portraying Mayor Randall Winston in the sitcom "Spin City".