If remember correctly, when the nighttime Wheel was placed in syndication, I believe the NBC-owned stations had first dibs to sign-up to carry the series. Problem was, those stations were still carrying the nighttime Family Feud in the early prime (7:30pm ET/PT) slot, although WMAQ in Chicago downgraded nighttime Feud's time slot in its final season (and probably one other NBC O&O). Up the road in Milwaukee, WTMJ and WITI traded nighttime Feud and Wheel for each other, starting in the '84-85 TV season (the final season of the original Richard Dawson era). WITI placed Feud at 5pm weeknights as a lead-in to the CBS Evening News, while Wheel aired on WTMJ at 6:30pm (where it does still to this day, albeit now on WDJT). Jeopardy! aired on WTMJ in the afternoons right from the start, until it (and Wheel) moved to WDJT several years ago.
I believe the same offer was also extended to the NBC O&Os when Jeopardy! entered syndication in 1984, although one NBC O&O, to my knowledge, carried Jeopardy! at the start--WNBC. In Chicago, J! (and Wheel) have aired on ABC's WLS each since day one; in Los Angeles, Wheel has aired on KCOP, KCBS, and currently on KABC, while J! originally aired on KCBS, then moved to KCOP in season two, back to KCBS, and finally on KABC. In NBC's other O&O markets at the time, Cleveland (WKYC) and Washington, D.C. (WRC), both shows have aired on the competing ABC stations for a long time, although in Cleveland, both shows are currently on WOIO, and in Washington, WJLA has aired both shows since at least the very early 90s, after being on WUSA in the beginning.
There only NBC O&O that currently carries both shows--San Diego's KNSD, but their carriage of both goes back to when they were still owned by Storer Broadcasting.