“The Invasion of Time” is the last adventure of the fifteenth season of “Doctor Who” classic series which aired in 1978 featuring the Fourth Doctor and Leela. It follows “Underworld” and it’s a six parts adventure written by David Agnew and directed by Gerald Blake.

“Horror of Fang Rock” is the first adventure of the fifteenth season of “Doctor Who” classic series which aired in 1977 featuring the Fourth Doctor and Leela. It’s a four parts adventure written by Terrance Dicks and directed by Paddy Russell.

“Snakedance”, is an adventure of the twentieth season of “Doctor Who” classic series which aired in 1983 featuring the Fifth Doctor, Tegan and Nyssa. It’s the sequel of “Kinda” and it’s a four parts adventure written by Christopher Bailey and directed by Fiona Cumming.

“Kinda”, is an adventure of the nineteenth season of “Doctor Who” classic series which aired in 1982 featuring the Fifth Doctor, Tegan, Nyssa and Adric. It follows “Four to Doomsday” and it’s a four parts adventure written by Christopher Bailey and directed by Peter Grimwade.

“Warriors of the Deep” is the first adventure of the twentyfirst season of “Doctor Who” classic series which aired in 1984 featuring the Fifth Doctor, Tegan and Turlough. It follows “The Five Doctors” and it’s a four parts adventure written by Johnny Byrne and directed by Pennant Roberts.