Fir the purpose of this exercise, do not use bouquets when selecting the service/channel, use the orbital selection method to see the all the different versions of the channels. Up (next to OK), Green for Reception/satellite/extended, select 28.2, all the channels will be listed alphabetically. Pressing 7 several times will take you to the channels starting with P,Q,R,S Think of it like the old phones.
Also, there is nothing stopping you from adding your chosen service to your bouquets.
Just because a service is free on Terrestrial, it does not mean it is free on satellite. There used to be quite a few examples (Dave, Pick, Quest +1, Movies etc) one current example is London Live. It is free on Terrestrial (can only be received in the London area) but not free on satellite. One of the Channel 4 channels on satellite is not free, it is intended for the people in ROI.
Following are encrypted, they are indicated by the green encryption icon in my screenshot.
STV Dundee HD (12226 MHz)
STV North HD (12168 MHz)
STV Scotland East HD (12363 Mhz)
As per hedges2016, the HD version on 11067/8 MHz is free
The ITV/STV names are massaged by ABM. If you scanned without using ABM, the names will be just be ITV/STV HD. The one you get in your bouquet is dependent on your region in ABM. I have attached two different screenshots to illustrate the minor difference.