There will be a 25-minute special celebrating the Sixth Doctor, Colin Baker, followed by classic 1985 serial Vengeance on Varos, broadcast on Saturday 29th June at 7.30pm ET.
Take an in-depth look at the sixth incarnation of the truly timeless Time Lord - who "turned [the Doctor] into this grand-standing showoff." With exclusive interviews with lead writer and executive producer STEVEN MOFFAT, Sixth Doctor companions NICOLA BRYANT (Peri Brown) and BONNIE LANGFORD (Mel Bush), examining the Sixth Doctor's adventures and discussing his famous foes.[Source: Doctor Who TV]
Then, in the story "Vengeance on Varos," the Doctor visits the planet Varos to obtain the rare ore Zeiton-7, vital to the functioning of his TARDIS. But Varos is a dangerous place, where rebels are tortured on live television and executions are used to win votes from the public. Trapped in the dreaded Punishment Dome, the Doctor and his companion Peri must fight for their lives - and save the starving population from the machinations of the villainous reptilian Sil.