Multi-channel RF moderator

[ChrisW6ATV]

As others said, there are modulators with two or more channels built-in, but they are all on UHF. One basic reason for the use of UHF is that most areas have several adjacent unused channels between each station as opposed to VHF where often every other channel is in use. Special filters are needed to put signals on adjacent channels, one reason the modulator in the Ebay auction above is more expensive than the typical consumer devices. VCRs could use 3 or 4 because they are not intended to be mixed with other TV signals.

If your desire is to have a bunch of VHF local analog signals in your home, the best way is to look for bargains on variations of the Ebay modulator above; I have seen them sell for US$20 often. Get several of them and a signal combiner, then feed all of your antique sets.