dear friend

you need  an outdoor vhf or uhf antenna or  twos.

amplifier  20   ,30  or  40  db  depending on your cablle  lengths  and splitters  attenuation.

you may design  wiring system.  if you divide  two  groups  ,first use a TWO  WAYS  SPLITTER.

then use  a  FOUR WAYS  SPLITTER and  4  SIX WAYS  SPLITTER s   for  each  group

                                                   antenna[s]

                                                   amplifier

                                               two  ways  splitter

           -----------------------------                            ---------------------------------

            four  ways  splitter                                         four ways  splitter

        six  ways  splitter  [4 pieces]                                   six ways splitter  [4  pieces]   

in designing try  keep  SYMETRY

sincerely  rahmati [antenna engineer]  rahmatikhalil@yahoo,com