regarding the first point - if I use a scart lead to obtain the dvd "channel" on the tv it comes on automatically when the dvd is turned on (as av1). I know that if it does not appear then the av button on the remote will find it.
the tv has av1,2,3,3,4,5 and also displays hdmi1 and 2 but none of these display the dvd screen when the dvd is on (when only using the hdmi cable)
regarding point 2 I can't say for sure but at a guess I would say upscale. Does this make a difference?