Some more episodes of this great comedy series. As said, some episodes are currently hard or not to find and most have poor quality.
Pic 1 from ep Medicine (1983) showing a boy, maybe Alasdair in dark blue 70s shorts, also sitting in class (side view). Pic 2 from an unknown episode (YouTube clip called ycdt stephanie 2) obviously redhaired Christian Tessier in red shorts. Also others in shorts but not shiny.
Pic 3 from clip “kid outsmarts teacher” showing a boy sitting probably in green shorts. I haven’t found better scenes of that. Pic 4 probably showing Alasdair in red and Doug in white shorts in ep 57 Courage (1984).
I also found red shorts in ep Drugs (1981) maybe not shiny, dark blue and white shorts in Nature (probably not shiny), white and red shorts in Fitness. Boy in white cycling, others sitting. Alasdair in white shorts in Relatives (are these shiny ?)
Thanks Doug for finding the following
Season 5. Episode 12. (Ambition ?) Ben Schreiner sitting with Lisa, Ben dancing in white shorts.
Season 5. Episode 13 (Clubs ?). Ben in black, standing with Christine & Les, standing golfing, sitting with christine and with all the cast, in white, at the end of the show.
Season 6. Episode 4. (Relatives, 1985 ?) Alasdair Gillis in white sitting with Les on the set and again with Les (playing a doctor) sitting at his desk.
Pics of Ambition and Relatives can be found on the barthsburgery site.