Advice sought for combining VHF/UHF reception on DTV

[zenith2134]

Hi guys. I am currently using a modified ntsc tv to receive DTV stations outdoors (portable for summer)...I basically integrated one of my converter boxes into the set.

The converter has one RF input (coaxial) and I've been using a simple UHF loop antenna connected to a 300-75 ohm balun. However, a search at antennaweb reveals that some of my local stations are on VHF, and sure enough, those are the ones which do not come in with the loop antenna.

Not wanting to purchase some crappy new antenna for my DIY-contraption, is there any way I can combine the output of a dipole VHF and a loop-UHF antenna so the converter sees both bands?

Thanks in advance.