https://www.doctorwho.tv/news-and-features/welcome-to-the-whoniverse-and-tales-of-the-tardis

So, there are going to be 6 "Tales of the Tardis" specials on iPlayer... but no info on anywhere else.

Over six parts, each episode of Tales of the TARDIS features a different duo, with brand new scenes woven together with classic episodes to create a feature-length omnibus episode.

Reprising their roles as the Doctor and companions to go on a timey-wimey spin down memory lane in these unmissable adventures are; Maureen O’Brien as Vicki and Peter Purves as Steven, Frazer Hines as Jamie and Wendy Padbury as Zoe, Katy Manning as Jo and Daniel Anthony as Clyde, Peter Davison as the Fifth Doctor and Janet Fielding as Tegan, Colin Baker as the Sixth Doctor and Nicola Bryant as Peri, and Sylvester McCoy as the Seventh Doctor and Sophie Aldred as Ace.

Viewers can discover Tales of the TARDIS when The Whoniverse launches on 1st November, with the extensive back catalogue of Doctor Who.

Tales of the TARDIS is a Bad Wolf and BBC Studios production for BBC iPlayer. Executive Produced by Russell T Davies, Jane Tranter, Julie Gardner, Phil Collinson and Joel Collins. It is produced by Scott Handcock and directed by Joshua M. G. Thomas. The episodes are written by Russell T Davies, Phil Ford, and Pete McTighe.

New footage with all of those companions and Doctors may cause me to seek these out in dark, dusty corridors of the internet...

--Sweetie Belle

7898663
I hope they find their way to Disney+ along with the other neo-RTD content.