I recently had the good fortune to inherit a very small form factor computer (Mac Mini). I've hooked it up to the TV in our living room with an all-in-one keyboard/trackpad combo, and it's working well. While TV is not too small, it's not overly large either, and I'm not happy with my ability to read normal text on the screen from the couch or recliner.
To help with this, I've already done several of the usual tricks for increasing the visibility of items from across the room, including increasing font size as much as I feel like is safe without breaking user interface elements. Now I want to see if I can increase readability by changing the font face.
Can anyone recommend a good, highly-readable font face? I know of several that were designed specifically with print and signage in mind, but screens have different challenges than signs and print (i.e. limited resolution, pixel grid, different lighting conditions).
The machine in question is dual booting OS X Mavericks and Windows 8.1 (Living room PCs seem to be the one place I've found so far where the "Metro" visual style really shines), so fonts for both kinds of systems are welcome.