there was an actual messenger tv:
http://www.msblog.org/category/microsoft/ms-products/windows-live-messenger/
if you want to check the source if you want to revive it:
https://web.archive.org/web/![star|10x9](upload://uwk09iqEodSuBMVY0L2g8SIKeDL.png)/http://messengertv.msn.com/![star|10x9](upload://uwk09iqEodSuBMVY0L2g8SIKeDL.png)