An in-vision commentary is a commentary in which the participants are filmed, and the resulting video is dropped within the video of the episode on which they're commenting. The practice was fairly commonplace on DVD boxsets of the BBC Wales version of Doctor Who, beginning with the series 2 boxset.
|2||The Christmas Invasion||Russell T Davies, Julie Gardner, Phil Collinson||DVD boxset|
|New Earth||Billie Piper, David Tennant||2006 Advent Calendar (day 6)|
|The Girl in the Fireplace||David Tennant, Sophia Myles, Phil Collinson||DVD boxset|
|The Age of Steel||Graeme Harper, Nick Briggs, Paul Kasey||DVD boxset|
|The Impossible Planet||David Tennant, Will Cohen, Shaun Parkes||DVD boxset|
|Doomsday||David Tennant, Billie Piper||DVD boxset|