OTA is actually a very small part of the Television audience, only 15% of Households uses a Antenna, so out of 123 Million Households, a tad above 18 million.
While Live TV subscribers is at 68 million( includes all Live TV subs, including YTTV, Hulu Live, etc).
In 2013, Live TV had 100.5 million subs, they are now losing 2 million a quarter, as of now they are predicting it will be down to 57 million in 4 years.
The number of U.S. pay-TV households, including cable subscribers, was 65.1 million in 2022. A forecast suggests a drop to 48 million by 2027.
www.statista.com
Streaming and OTA, costs I have no idea.