ota dtv antennae/amplifier issue
We have two digital TVs currently connected via a splitter to our big ole 1960's vintage antennae. Get great picture and good number of channels on TV in living room. BUT, not so many digital channels come through on the kitchen TV. We understand that we probably are experiencing signal loss/degeneration due to the splitter and possibly the length of the cable run from the antennae. Our antennae is in very good line of sight to the translator. The DTV signals in our town are VHF.
Are there newer VHF antennaes with the amplifier built in? If so, do you know brands/models? If not, do you know of amplifiers that work well?
Finally, our old antennae comes into the house on a flat twin lead cable and connects indoors to the coaxial cable. Is it possible to run new coaxial cable on our old antennae, or is it better to buy a new one where coax is already afixed?
Thanks for any help on this.