Looking for Satellite receiver with 4 Sat Tuners | Also need Freeview Splitter

[SkyFan]

I'm looking for a box as cheap as possible (used or new) with 4 satellite tuners or 2 sat tuners but it allows me to add a 2nd sat twin tuner. I've already got a VU+ Duo 2. If I buy another is it possible to change the remote frequency otherwise one remote will control both boxes at the same time?

Also looking for a freeview splitter so I can split my freeview cable that comes out of the wall into multiple cables. Any suggestions and will I still be able to watch different live channels on each box if I split the freeview cable?