Disc 3 of Season 7 of The Waltons. Pic 1 showing Jim-Bob hunker down in hickory striped bibs at 1h09 (ep 10). A similar scene but not that close-up at 1h00. Note, that the double episodes in Germany counting as 2 episodes, so must be ep 9 in the US.
Pic 2 showing Elizabeth in light blue bibs and thick pigtails at 2h22 (also full view front+rear). Soon after that also sitting at the dinner table next to Jim-Bob, both in bibs, Jim-Bob in light blue, not hickory stripes bibs.
Pic 3 showing an older teen boy in white or similar bibs but a shirt over them (1h42, ep 11). Jim-Bob also wearing bibs (probably the hickory striped ones) under his black pullover. Also sitting inside like that at 1h57.
Pic 4 showing black boy Josh, the younger brother of Jodie, in medium blue bibs at 14 minutes (ep 9).
Also some good rear views of Jim-Bob (4 minutes, 50, 1h21). Hands in back pockets at 1h06.
Sorry, I forgot disc 2 (coming soon) including 2 new girls.