I've been reviewing publicity / videos out there (on Youtube) ...
please add links to others you know of - taking the words "community rail" in the widest sense - so a video encouraging travel from Reading to Basingstoke fits in well too, as might the Bude rail replacement bus that's been rail replacement for half a century!
https://www.youtube.com/watch?v=tyHYkMMG8Pg - the Looe line
https://www.youtube.com/watch?v=Shjr3qUwvKk - the Tamar Valley line
https://www.youtube.com/watch?v=cq6j5tW0CNQ - montage of Devon and Cornwall lines
https://www.youtube.com/watch?v=lWaWJh0nF6E - the Severn Beach line
https://www.youtube.com/watch?v=IEfEOlZZ24A - Severnside
CRP▸ and Incredible Edible Bristo
https://www.youtube.com/watch?v=pEc1j8PWTiM - the Heart of Wessex line
https://www.youtube.com/watch?v=b_EsMXS70LM - the North Downs line
https://www.youtube.com/watch?v=E0HEq7erj6U - the TransWilts line
Not really single line / CRP - more general community rail stuff.
https://www.youtube.com/watch?v=TPraXQCp2Kg - Take you dog on the train
https://www.youtube.com/watch?v=0SUc8xlOgGc - Community Rail in the City
https://www.youtube.com/watch?v=K9nvbxR-uQk - Overview of Community Rail (from
ACoRP▸ )