Found this thread through a Google search after finding a REALLY OLD VHS lot from Ebay a few months back. It took me a few months to read this thread all the way to page 68

More about that lot later though.
Like others have said, I've noticed that the amount of home recorded VHS tapes at thrift stores has dropped to almost nothing. From time to time I will actually donate doubles of tapes I have to see if they will ever reach the store shelves, and they NEVER hit the shelves at local Goodwills or Salvation Army, it probably has something to do with regional or national rules for such things. HOWEVER, I have noticed that the smaller, non-corporate thrift stores will still sell these tapes, or at least put them in the free bins outside instead of trashing them.
Years ago when these tapes were more common (I'm talking late 1990s-mid 2000s) I would find such gems as ancient Beta K30s or K60s, the oldest recording was 30 minutes of the Carter Inaguration from January 1977, and an hour of North Carolina basketball in the 1981 Final Four plus snippets of the Reagan assassination attempt coverage from the same day in 1981. I've found the 1st game at the Dean Dome (January 18, 1986) 3 separate times at thrift stores, the coverage came from WRAL (my local affiliate). In fact, typical tapes I find are of UNC basketball, and sometimes Duke basketball, usually WRAL or WTVD, depending if the broadcast is CBS/Raycom or ABC. Rarely do I find things from Pay TV, though I did get a complete Wrestlemania 3 (1987) taped from PPV awhile back.
The best find I got in the non-Ebay wild was from an out of town Salvation Army, I was shocked to see they had a stack of 10 home recorded VHS tapes, all labeled with the old school style of sticker letters, and they looked to be RCA VK-250s! In retrospect I should have bought all of them at .25 a piece (as the rest were gone next time I went) but I snagged the 2 most promising ones, which had NFL games on them.
One was from SEPTEMBER 27, 1981 !!! (oldest VHS I've found in the wild) from the Denver, Colorado NBC affiliate of the San Diego Chargers at Denver Broncos, complete with commercials, and a bit of local postgame. The other tape was more disappointing as it was from December 1984, Denver Broncos at Seattle Seahawks (also Denver NBC affiliate), I say disappointing because it was heavily edited into 2 hours so no commercials or local airchecks.
Now on to the Ebay lot. The lot came up in my searches feed, and oddly enough it came from only 90 miles east of me. Tapes were not labeled, but there was a note card system of the contents that the seller photographed (it looked to be a large estate lot that the kids were selling off) and the original taper was very meticulous in that they had replaced the factory cardboard boxes with archival hardshell plastic cases. The tapes did look a bit old though, with the typical markings of RCA VK-250s and other older brands.
A week later I was pleasantly surprised with my findings:
Tape 1: Super Bowl XVI recorded from WTVD on January 24, 1982 (then a CBS affiliate before the switch with WRAL in 1985). Unfortunately most commercials were cut to save space (sad because Super Bowls have some of the best commercials). This taped over a late night movie (from WRAL I believe) that aired January 17, 1982 from what I could tell from commercials, all of which were present.
Tape 2: 1981 ACC Championship from March 7, 1981, CD Chesley syndicated broadcast, probably on WRAL. All commercials were present, as well as station breaks and such.
Tape 3: Segments of incomplete games from the 1977!!!! NCAA Tournament taped off the Greenville/New Bern, NC NBC affiliate. This included the Final 4 semifinal and regional semifinal the week before. After doing some research on the unveiling of the VHS format in America, this had to have been copied from a Umatic or Beta, as from what I can tell VHS was not around in April 1977, the date of these broadcasts. Lots of airchecks and commercials in this too.
Tape 4: January 4, 1986 NC State at UNC and January 18, 1986 Duke at UNC. Both were WRAL but edited, so not too many commercials present.
All in all I got that and some other tapes in a lot for about $3.50 each, not bad for Ebay, there is some old gold to be found for sure.