OK if you need RF to the TV's use:
A DVD player into an RF modulator ( unless its a rare DVD w/RF out)
then into a DISTRIBUTION RF amp then multi set couplers.
If the TV's have A/V ins use DVD then A/V distribution amp, the
ones I have seen have multiple outputs.
Alternative is use a good modulator, cut a dipole for its output
& hang some sort of wire off the TV's RF in. At close range should work good.
Others do it for whole house coverage & probably next door.
Dont tell the FCC !
73 Zeno