I currently have a one month sky sports pass for mobile, I was wondering if I add the boost option for £3 per month, does this allow me to cast my mobile pass to the TV or do I have to have a normal sky sports pass in order to do so?
Nope the Boost Pass doesn't work with a Mobile Sports Pass.
Should you want to cast from.a phone or use another supported device then you need a full blown sports pass.
Have a read of these two help articles.
With the weekly pass all 11 sports channels are included?
Yes, but Now TV don’t sell them direct anymore. Try Game.
can I have a sky sports mobile pass and normal tv sports pass on the same account?
Yes, but it is a bit pointless having the mobile pass as well as the main pass as you have six devices and you can watch on 2 at same time (3 with boost). Could be worthwhile if you have occasional day passes, but not if you are running two monthly passes in parallel.
Yes you get 11 number Sky Sports Channels with a one week NowTV Sports Pass (the difficulty you may find that the one week sports pass vouchers are being phased out and getting difficult to source and find).
Apparently Game UK still have some one week voucher codes.
You can only have one Sky Sports Day or Month Pass at a time, but alongside any of these you can also have a Sky Sports Mobile Month Pass.