I have been watching "All in the Family" and is it just me or are they NOT showing seasons 1-4

SURPRISINGLY, as of this week, they started over way back to the FIRST SEASON, even showed the FIRST episode, after all this time of skipping seasons and showing the same episodes, and they're on at a much earlier time slot, at 10:00 and 10:30 PM

What IS the first episode/pilot? I've seen all the season one's I think, but which one is the first episode?

It was called "Meet The Bunkers", where the Bunkers celebrate their wedding anniversary, Edith has dragged Archie off to church, and Archie and Mike are squaring off about religion, prejudice over Jews. The family even claims that Archie is Jewish, with the way he uses his hands to talk

10 and 10:30 slot is just this week. Cheers will eventually take that slot after the Cheers marathon next week.

Is "All In The Family" going back to either midnight or the wee hours of the morning?

All in the Family will air:
(Effective Oct 14)
Sundays 2-3AM (early Monday)
Mon-Thurs 3-4AM (Early Tues-Fri)
Fridays 1-2AM (Early Sat)
Saturdays 2-3AM (Early Sun)

Not to fear, TV Land in November will air this show in primtime as well!
Eff Nov 3:
Saturdays 11PM
Sundays-Fridays 12AM (Early Mon-Sat)
Also you can catch AITF on TV Land in November on some specials, like "Unforgettable" episodes special.