Gibson remained a fixture on network television with guest stints on scores of series, including "Bewitched," "Love American Style," "Wonder Woman," "The Dukes of Hazzard," "Fantasy Island," "Magnum, P.I.," "Newhart," "Murder, She Wrote," "Mad About You," "Sisters," "Star Trek: Deep Space Nine," "Sabrina the Teenage Witch" and "Charmed." He also enjoyed a season on the daytime drama "Sunset Beach" and was particularly effective in a recurring turn as the stern, often unreasonable judge Clark Brown on the legal drama "Boston Legal."