Hi Gingercat,
Compared to the ProV, this would appear to have different video decoding, including nicam - this would be handy for feeding a DPL II receiver for decent surround sound from onboard TV tuner - - alternate with ProV is to feed audio separately from VCR/SKY box to receiver.
Can't say much more, pity it doesnt do 852x480 - the Viewsonic VB50 (US verion of ProV does this resolution - be very good for AE100 - Viewsonic in USA wouldn't confirm that the VB50 would process PAL signal, and Viewsonic UK don't distribute it
AFAIK.
All the best,
Sean G.