We were "on the road" for the past month and was unable to watch the shows "live." I did, however, record each one while we were gone. We began to watch the series last night starting with the "Big Family" episode.
Music, for whatever reason, is very important to me and "country" music is one of my preferences (along with Jazz, Blues and anything from the Caribbean). I spend a lot (way too much) of my time searching for new sources.
With that in mind, I can make some recommendations:
First, the best source of country/Bluegrass listening would be the "Hazel & the Delta Ramblers" program found Sunday mornings from 10:00 to Noon CT on WWOZ-FM (
https://www.wwoz.org/programs/old-time-country-and-bluegrass-with-hazel-delta-rambler). She's forgotten more about country music than most experts ever knew. She also has a Facebook page -
https://www.facebook.com/HazelAndTheDeltaRamblers/.
FWIW, this program is proceeded by 1½ hours of Gospel music (very related to Bluegrass) and followed by 2 hours of Cajun music and then 2 hours of Blues (again Bluegrass related).
Anyway, I have listened to Hazel for several years and have each of her programs scheduled to be recorded (
https://applian.com/replay-radio/).
Next would be to watch the PBS show "Bluegrass Underground."
https://www.pbs.org/show/bluegrass-underground/. I, also, have been recording episodes of this show for a long, long time. This show features everything from big name stars to those just becoming known.
Finally, one should visit the Bluegrass Music Hall of Fame in Owensville, Kentucky.
https://www.bluegrasshall.org/visit/visitors-guide/ We visited when they had been open for a only week and they were "not quite ready for Primetime" but the displays and memorabilia were impressive. I have been told it is much better now -- matching the Country Music Hall of Fame in Nashville (which is another must see).