A few years ago, 20 on 20 (a.k.a. Top 20 on 20) was replaced by Venus.
20 on 20 was a music discovery channel. It played a lot of the hottest hits at the moment, but also played a lot of unsigned/independent performers. After 20 on 20 went under, the unsigned/independent performers now no longer had a platform they could be supported on. A lot of people were extremely bitter about SiriusXM dumping 20 on 20 and replacing it with Venus. Venus dabbles with lesser known music a little bit, but nowhere near to the extent 20 on 20 did.
Either way, a page has been created in memory of 20 on 20. Fans of the station can discuss the station, songs that they liked which were played on the station, etc. It can be found here...
https://www.facebook.com/20on20/