He's always been using some sort of tablet for his recordings. In fact, if any of them were achieved by mousing, then Khan isn't just a brilliant educator, he'd

He's always been using some sort of tablet for his recordings. In fact, if any of them were achieved by mousing, then Khan isn't just a brilliant educator, he'd also be blessed with godly mousing skills. What would be nice is if someone could help him out and update the older vids. As others have pointed out, the new vids have great quality. Maybe it's possible to algorithmically improve the quality in the past ones given that they're all lines.