The 60th anniversary of the series is on August 3, 2024. This link provides background about how a hobby-wide crowd-sourced collaboration has resulted in a new set of T5 recordings. More than 90% of the recordings have been replaced with better recordings. A "missing" recording has also been found!
Recordings are available in lossless FLAC and convenient 128 mp3 formats.
Complete details are at https://sites.google.com/view/theatre-5-60th-anniversary-set/home