The largest media companies are loss-leaders for telecom conglomerates. They don't actually need to be profitable.
There is an infographic here: https://techstartups.com/2020/09/18/6-corporations-control-9...
AT&T spun out Time Warner and merged it with Discovery because it had no idea what to do with it or how to run a media company.
Comcast only bought NBC Universal in 2011. Only one major media company (and not even the biggest one) could arguably be a loss leader for a telco. The rest are doing their own thing.