In an episode of RHS's Visual Podcast Series 'Roots' which featured Nigel Slater, Jo Whiley's intro PTC accidentally featured the camera and sound crew in the window's reflection.
Through various still plates and motion tracking, I was able to restore the wall behind the glass as well as the reflection of the garden with minimal trace of the crew ever being there, allowing the focus to remain on Jo.
Roots is published by Podlab UK