Today in TV History - May 22

1966 - The final episode of "Perry Mason" aired on CBS.

1967 - "Mister Rogers' Neighborhood" made its debut.

1967 - The final "To Tell the Truth" program was seen on CBS.

1984 - The final episode of "Hart to Hart" aired on ABC.

1992 - Johnny Carson hosted NBC's "Tonight Show" for the last time.

2001 - The final episode of "3rd Rock from the Sun" aired on NBC.