Running multiple tv's off 1 receiver

[Cement]

Hey guys I have a 222k receiver in my basement.I am back feeding a tv2 in one of my kids rooms and I. Am trying to mirror tv1 that is in the basement to my other kids room. My house is run with rg6 to a single location in the basement and the receiver already. Back feeds to the location but it only back feeds tv2 what can I do to get tv1 upstairs?

[JRox]

Try setting the modulator to 116 or 118. On cable. Menu,6,1,5.
I am fairly new to this so don't quote me.
I also think the main line needs to be RG 6.