My elderly father is increasingly frustrated by his computer display. A high-res card and monitor combo, with the card operating in the "native resolution" mode for sharpest display, leaves screen elements too small for him even on his 20" display. Lowering the resolution, which results in larger stuff on screen, moves the card out of "native" mode and takes the sharp edge off the display.
I've talked him into upgrading his television to a newer LCD, and we'd like to explore a dual-purpose display with HDMI input from his Dish Network receiver as well as input from his PC.
What factors go into choosing and configuring a display for this sort of usage? What are the trade-offs involved?
Is there a class of video card or specific feature set that I should be looking at?