This promo video with Tom Hanks mentions High Quality Sound. I can confirm the audio stream is an impressive 192 Kbps CBR MP3. Debbie Daughtry tells me that’s thanks to Boss Radio 66 now being exclusively on TuneIn.
Here’s something else Tom will be doing:
https://news.harvard.edu/gazette/story/2023/03/tom-hanks-named-2023-commencement-speaker/