Connection of UHF and Color Adaptors to VHF Receivers

My subject for discussion is the connection of UHF and color adaptors to VHF receivers. All of us are aware that a great deal of attention is being paid today by engineers and designers to the problems of UHF conversion of VHF receivers and there is strong evidence to indicate that all receivers made in the future probably will contain either tuners which stretch over both the VHF and UHF bands, or are convertible by one of a number of possible methods to UHF reception after the receiver has left the manufacturer's factory.