Are there any other examples of something like this?
In the early '80s, NBC had 'Real Kids', a spinoff of 'Real People'. One episode had a segment about bubble gum that featured Al Lewis of 'The Uncle Al Show', a local show on WCPO Cincinnati. However, WCPO wasn't an NBC affiliate. It was CBS at the time. Our NBC affiliate was and still is WLWT, which aired the episode even though it featured a personality from a competing station.
Was this common, or was this a unique incident?
In the early '80s, NBC had 'Real Kids', a spinoff of 'Real People'. One episode had a segment about bubble gum that featured Al Lewis of 'The Uncle Al Show', a local show on WCPO Cincinnati. However, WCPO wasn't an NBC affiliate. It was CBS at the time. Our NBC affiliate was and still is WLWT, which aired the episode even though it featured a personality from a competing station.
Was this common, or was this a unique incident?