Too much red in picture unable to get it out

The most common cause is the emission of the CRT electron guns are decreasing. They are going out of range and of proper balance in relation to each other for the AKG (Automatic Cathode [K] Gain) circuits in the CRT drive circuits to compensate for proper colour balance and colour tracking.

A less frequent cause are components going defective in the CRT bias and drive circuits.

I would be considering a new TV set with this type of fault condition. The cost of servicing this would be expensive.

Jerry G.