I too have a Nakamichi cassette deck and it does do a very good job in that format.
As for BBC content, I belonged to a "secret" trading group where we circulated American and BCC radio programs, mostly on CDs and DVDs, and I ended up with over 120,000 shows from the BBC. I really like the serial from the Sci-fi genre and the mysteries. I also used to snag quite a bit on content via USENET.
Yes, when Hitchhikers Guide first aired in the states, I was living in Southern California and rolled tape when it aired on one of our NPR stations. The same when the radio version of the Star Wars trilogy aired.
Over the past few years I've been digitizing all of that broadcast stuff so it's not only backed up but so I can catalog and more easily access it. I keep it on an external drive that is backed up to another external drive. I also shove lots of it into my iCloud account where I have a terabyte or so of storage.
BTW, I went to a used record store a year or so ago and asked if they stocked used tapes. The owner said no and we chatted about the tape world. When he saw how into it I was, he said that a guy had stopped by a while back and wanted to know if the owner wanted to buy some reels. When the owner declined the guy said, "Here, just find them a good home where they will be appreciated." The owner said I sounded like the guy and gave me the box. It had about 30 factory recorded albums, all from the 1960s: Beatles, Stones, Hermits, Sonny and Cher, Supremes, Spoonful, etc. I couldn't believe my luck. To buy all these today, like off eBay, it would be a small fortune. I should have bought a lottery ticket that day. Then, a year or so ago, a guy was selling some 8-tracks on Craigslist and I went to his house to get them. I mentioned I was into reels too and he goes into the garage and comes out with 8 reels that I bought for $5 each: War, BTO, Paul Simon, Tommy soundtrack, CSNY (Deja Vu), Blood, Sweat, and Tears, and a couple others.