1957 Hotpoint interference when used on cable

[JCFitz]

Just got a 1957 hotpoint recapped and working.Model 14S202 UHF. Every cable channel,some more than others has intereference.It's clear as a bell when tuned in through a vcr. Is this the nature of some of these older tvs or will a tuner alignment help?So far I have gone through the IF alignment.It is about as close to the Sams shape and marker position as you can get and the picture is pretty darn sharp for a b/w tv.The sound is clear,no buzz and sync stable.