Fightful has a pretty good article about the time buy rumor regarding AEW's potential tv deal and some of the behind-the-scenes stuff regarding the networks involved in the talks.
Seems its something that AEW is considering as a backup option but only if TNT and TBS get cold feet on any potential deal and AEW doesn't feel they can succeed on premium cable via Showtime. TNT and TBS supposedly lost a lot of luster in wanting AEW when they found out it was ROH who handled the production side of All In.
For some reference, "Dark Twitter" in the tweets listed usually is assumed to be just DMs being sent back and forth with sources and in some cases, when stuff is being made up. Some like using the term since it makes things sound more a lot more juicy for rumors.
Link:
https://www.fightful.com/wrestling/s...-and-time-buys