This is a list of episodes for the television series Marcus Welby, M.D. Series overview Episodes Pilot (1969) Season 1 (1969–1970) Season 2 (1970–1971) Season 3 (1971–1972) Season 4 (1972–1973) Season 5 (1973–1974) Season 6 (1974–1975) Season 7 (1975–1976) TV films See also List of Owen Marshall: Counselor at Law episodes References External links Marcus Welby, M.D.