Yes!? Seven had aired “next” PRGs frequently for at least a year or two, on all channels including main channel up until a couple of months ago, when I brought the discussion up about Seven’s metro PRG having been changed…
I also brought up a few weeks ago, how Seven have brought them back. However they don’t air after every ad break now, only at randomly selected times.
NB/ The “next” line in the PRG also sometimes has a 7Two/7mate/7flix/7food logo promoting a program on a multi-channel. Since the changes, still happens but less common.
@TV.Cynic was able to back me up last time with caps about 7Two/7mate previously having a bizarre PRG at the start of a program.
Perhaps he has some caps of “next” PRG lines on Ch 7 in his archive from past year or two?