You raised an interesting point on the podcast re there always being good music in the charts. I wanted to test it out but I couldn't find any playlists anywhere to listen to them in order. I went to Wikipedia and started building them by hand but it was impossible, so I wrote a script to do it for me  https://gist.github.com/darajava/7e4b19116ed82afaf43282e0601e104f  It's actually very interesting to go through them. I'm on 1958 currently, some smashing tunes. Thanks for the idea!
playback.fm is a very convenient site for listening to charts