Looking for past emmy submissions on internet, I found on wikipedia the episodes that lead to the win the supporting actors in 1995. I’m not sure if those episodes are the ones that they submitted but looking past ceremonies in the same web, the episodes submmitted match with the episodes on the past emmys submissions thread.
Ray Walston ( Picket Fences ) “Final judgement”.
Christine Baranski (Cybill) “Starting on the wrong foot”.
David Hyde Pierce ( Frasier) “Flour child” & “An affair to forget”.