In Windows 7, you can only Remote Desktop to Windows 7 Pro, Enterprise, or Ultimate. So, for most of home users who have Windows 7 Home Premium, there is no RDP into it. Just to be clear, all Windows 7 versions can initiate a connection, but only Pro, Ent, and Ultimate can host (read here for more).
So, one of my desktop that I use for Media Center is running Home Premium - and from time to time I do need to login to it to run updates, install drivers, troubleshoot, etc. Yes, I can do it from the TV, but that means putting keyboard & mouse - which I don't want to. There is a "hack" - which basically installing the host executable in the PC - but somehow when I tried, it did not work - although the forum chatter seems to indicate that this should be relatively easy. So anyway, I decided to just put a keyboard & mouse for the time being. Until about 2 months ago, when I discover Chrome Remote Desktop (BETA)!
Here is the step-by-step:
If you do not have Chrome installed, go download & install it here. Go to Chrome Web Store and search for "remote desktop" and you should see result like this: