The Information button makes the channel information information pop up for a fixed time. The PVR on my Freeview box for my main TV has a nice feature for this, that I think WinTV could use.
Each time you press the Info button, it cycles through three modes: 'Simple Display' (just the program name and start/end times), 'Full Display' (which includes a summary of the program) and 'Off' again.
Just a simple change, and it would be quite useful.
Nova-T-500 PCI Card (older revision - 99xxx) on Windows XP SP2
London (Crystal Palace - marginal signal)