I'm not impressed. The Colossus works fine under Windows 7 with both with WinTV and MCE, but Windows 8 w/MCE (at least as of Dec 15th) does not work at all, however WinTV under Windows 8 works fine. Hauppauge email support responded to me fairly quickly (good job), but the bad news is they still didn't give an ETA and NEITHER MS or Hauppauge are up-front with the fact that the Hauppauge HD PVR and Hauppage Colossus <do not> work under Windows 8 MCE with the current driver set yet. For now I reverted to my Windows 7 backup and Windows 8 is shelved until I can actually use it. (The reason why I went Windows 8 in the first place was that my Windows 7 install was corrupted by automatic updates, so I figured "why not"?)
DVBLink with Colossus or the HD PVR are <not> free, and have questionable support, so I prefer not going that route. (I'm super technical and had a hard time configuring it all, only to find out that in Canada the EPGs are not free and Titan's not available in Canada.
I guess HTPCs are a dying breed: Sage was bought out, BeyondTV w/H264 is limited w/the Colossus (and drivers?), MediaPortal configuration is killing me, and Windows 8 MCE success seems to be limited. It seems like the h/w and s/w combination to get things to work at all is limited, add to that the complexity of configuring the source makes this a far cry from mainstream. Too bad.
<Edited: Clarified Win8 MCE is the problem; WinTV and ArcSoft under Windows 8 seems to work very well.>