I've just checked, and yes, all channels have -IceTV at the end...
Of course, it means that the listing with the -Rpt is from EIT, but I don't know why it's there. Was it because I used EIT first before getting the IceTV scheduled task running?
Or does 7MC use the EIT in the absence of data from IceTV?
Could explain why some of our "let's record this" selections fail to record come a week later!?!
Update: I've just compared my WIN TV listings with what IceTV have under "Interactive". And it's confusing. I've got some IceTV data, and some (I'm presuming) EIT data.

Update2: And now that Wednesday listing of Antiques Roadhow is the IceTV version, whereas yesterday it was the EIT version...