Not unless they make a "high" "high" diplexer.
ie.-uhf and vhf, ultra high, and very high,,,
tv 2 off of 722 is UHF.
oTa= UHF!
run the line!
oh yea 1000k lnbf is three output, fourth is input,,, capable three (3) dual tuners... and wing dish...
nothing is being broadcast by connecting...