I have the HC3 and my remote has zoom... in fact, it has photo grab ability, zero memory set... etc. The only thing it does not have that would be nice is remote menu access... without remote menu access, you can't get to the effects (negative color, old cinema, pastel, slo mo.......). But in any event, I would find it hard to believe that the basic remote features are not found on the HV20
I don't see any reason why one could not sub the remote for LANC... it even works from BEHIND the cam. I think the remote simply works maybe 1/2 a second slower though.