Aha, interesting, I looked up some info about it and it seems that in another experiment the dogs also reacted when the owner went home at irregular times. Quite interesting:
https://www.sheldrake.org/research/animal-powers/a-dog-that-...
https://www.sheldrake.org/research/animal-powers/a-dog-that-...
As for that first video, honestly it feels phony/staged, like all that fake miraculous crap that was common on TV 10-20 years ago.