This came up in another thread (can't remember where), but apparently HD Net is re-branding this summer and will come back as a new channel. Apparently the MMA and concerts will remain intact, but I'm not sure what else:
http://www.hd.net/press_articles/hdn...become-axs-tv/
I guess we will have to wait and see if the new channel is offered, and if it will be worth watching in its new form. I'm not sure why Shaw dropped it now instead of waiting for the re-brand, but the demise of HD Net as we know it certainly isn't Shaw's doing.