I have an idea for streamlining the setup wizard and I would appreciate some feedback.
I freely admit that this may not be necessary as the idea came to me because as a developer I am frequently building new test systems that require setup.
My idea is to merge the "Tuner and Network" step with the "Predefined Muxes" step.
In the "Tuner and Network" step, each tuner is assigned a network name, or the network name is left blank to indicate that the tuner in question is to be ignored. This network type is selected from a drop-down list that is already populated with a network type that reflects the tuner type (DVB-T, ATSC-C, etc), but it can also be manually entered.

In the "Predefined Muxes", a list of muxes for the tuner's type is provided for the user to select from.

I think that these 2 screens can be merged.
Firstly, instead of having each adaptor listed individually, group adaptors by type.
Silicon Labs Si2168 #0 : DVB-C #0
Silicon Labs Si2168 #0 : DVB-T #0
Silicon Labs Si2168 #1 : DVB-C #0
Silicon Labs Si2168 #1 : DVB-T #0
Becomes:
DVB-C
Silicon Labs Si2168 #0 : DVB-C #0
Silicon Labs Si2168 #1 : DVB-C #0
DVB-T
Silicon Labs Si2168 #0 : DVB-T #0
Silicon Labs Si2168 #1 : DVB-T #0
Next to the first adaptor in each group has a drop-down box listing the pre-defined muxes for that adaptor/network type. The default value will be 'Not set'.
The second adaptor will have a drop-down, but the default will be 'As above' with 'Not set' also an option.

I'm not sure what to do about IPTV. Perhaps a semi-colon separated list of URLs, one for each IPTV network to be created.
When the user presses 'Save & Next', a network will be created of a type that suits the adaptor type but with a name that matched the pre-defined muxes file name or the IPTV URL.
It may also be possible to merge in the 'Service Mapping' page as well.

Adding the three check boxes to the bottom of the merged page can allow that process to occur automatically.
Perhaps a 'Show Summary' checkbox could be added to display the number of services found on the 'Finished' page.
Also, if possible, the 'Save & Next' button should also respond to 'Enter' as a keyboard shortcut.
Thoughts and comments welcome.