Mr- Merlin - 1981 Change of Venue Part 2 1-19 was released on:
USA: 22 February 1982
Lawman - 1958 Change of Venue 4-22 was released on: USA: 11 February 1962
Black Saddle - 1959 Change of Venue 2-11 was released on: USA: 11 December 1959
Merlin - 1998 TV was released on: USA: 19 October 1998
Young Merlin - 1993 VG was released on: USA: 1993
Merlin's Magic - 2013 was released on: USA: 1 May 2013 (video premiere)
Merlin season 3 is able to be watched on Youtube. Check on Wikipedia to see the release dates. Only a few are out. Enjoy them :D.
Mr- Merlin - 1981 The Ache 1-10 was released on: USA: 23 December 1981
Merlin the Magic Mouse - 1967 was released on: USA: 18 November 1967 Finland: 15 October 1972
Mr. Merlin - 1981 A Moment in Camelot - 1.7 was released on: USA: 18 November 1981
Super Chicken - 1967 Merlin Brando 1-11 was released on: USA: 25 November 1967
Mr- Merlin - 1981 I Was a Teenage Loser 1-22 was released on: USA: 22 March 1982
Merlin's Apprentice - 2006 1-1 was released on: USA: 2006 Japan: 8 June 2007 (DVD premiere)