Unfortunately, BBC Worldwide and 2Entertain have said they have no plans to release it on DVD however it is possible to download the Curse of the Fatal Death Comic Relief episode via YouTube
Helps if spelled correctly. Originally "Doctor Who and the Curse of Fatal Death." Also aired as "Curse of Fatal Death." Released on VHS (1979) in two versions; the longer includes a Behind the Scenes/making of bonus "Doctor Who: Uncovered".
Where did the add-a-link button go?
Comic Relief Doctor Who - The Curse of Fatal Death - 1999 TV is rated/received certificates of: UK:PG
Doctor Who - 1963 The Seeds of Death Episode Four 6-26 is rated/received certificates of: Australia:G
Doctor Who - 1963 The Seeds of Death Episode Six 6-28 is rated/received certificates of: Australia:G
Doctor Who - 1963 The Seeds of Death Episode Five 6-27 is rated/received certificates of: Australia:G
Doctor Who - 1963 The Seeds of Death Episode Two 6-24 is rated/received certificates of: Australia:G
Yes, in an episode called "Death of the Doctor."
Doctor Who - 1963 The Ambassadors of Death Episode 4 7-15 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Ambassadors of Death Episode 7 7-18 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Ambassadors of Death Episode 6 7-17 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Ambassadors of Death Episode 5 7-16 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Ambassadors of Death Episode 2 7-13 is rated/received certificates of: UK:PG (DVD rating)
Doctor Who - 1963 The Ambassadors of Death Episode 1 7-12 is rated/received certificates of: UK:PG (DVD rating)