This logo debuted June 10, 1979, and was shared with then-sister station KTSP (now KSAZ-TV) from 1982 onward. WTSP and KTSP were both owned simultaneously at one point by Gulf Broadcasting. One of these pics above use ABC's Together slogan from 1986-1987.
In 1994, WTVT, the CBS affiliate in Tampa Bay, switched to the Fox network after an affiliation deal was made with WTVT parent New World Communications. As a result, CBS was forced to find a new station in Tampa, which was WTSP. ABC made the move to former Fox station WFTS-TV. The previous logo was simply modified to include the CBS eyemark as a result.