I guess it's actor's PR managers sending their nominations to awards ?
Channel in-house awards may be different.
but all these two ITA awards and Gold awards and all are private ceremonies holding under some media houses or like wise concerns.
And there are fixed group of actors who were always present in such award shows no matter being a part of a show or not.
and awards received by certain actors who have huge PR back up.
and why producers has to send nominations of actors for a show already off air ??
it's not beneficial to them in any way in case of show went off air
but for on air shows may be producers keen to promote show or characters at the starting year may be !
so I guess awards is like we are seeking scholarships as we have to submit everything needed for it then we awarded the merits.
so it's a costly affair for actors( to get awards) and it's up to them to part of it being in lime light or staying away from it.
and almost all actors have their PR these days in a minimal way atleast so it's up to their mangers to send their profiles to awards or any such public events that is what I feel but not sure though.