1. No. This TV cannot take 720p. It can only take 625p (576p or PAL progressive), 525p (480p or NTSC progressive) and the HD signal 1125i (I don't know about this one but sounds more

1080i which is high definition (HD)TV). As far as I know of, Sony is the only consumer grade CRT TV that can take 720p.
2. It doesn't tell but I

to guess that it should set back to its default factory preset, ie MID.
Please provide Tosh exact model number for reference.