I got to do something similar in 1970, BtB. The Providence, RI affiliate aired DS on the day, but the Boston, MA affiliate aired it a day later. And Boston was on at 3:30 and Providence at 4, so I could watch an ep again at 3:30 and then the new one at 4.
And I've definitely mentioned this before but fall and winter of 1968 protesting parent's groups had successfully gotten DS moved to 8:30am in Providence and 2:30pm in Boston. But if I was off from school I was able to do an unusual bit of catching up because the 8:30 show was a day behind BUT the Boston show was two weeks behind (it wasn't even on the Boston affiliate, which had completely dropped it, but on an independent UHF station - remember those?
) Obviously some of the plot points in the Boston shows would be ruined because I'd already know what was going to happen - but it was still fantastic to catch those shows just the same because back then I was seeing very little of it...