C64 video output: Is there room for improvement?

Part 1 of 2: Bread-bin Commodore 64 machines with main board revision 250407 and KU-14194HB have relatively soft and blurry video output. Also, there are numerous VIC-II chips that work on these machines. Is there any difference between the different revisions of VIC-II chips? Can we do anything to improve the quality of the video output on these old machines? Watch to find out! C64 mainboards: Longboard 250407 PAL/NTSC Longboard KU-14194HB PAL NTSC VIC-II chips: 6567R56A 6567R8 6567R9 --- Video Links C64 and Atari Video pinout: Wikipedia VIC-II: NTSC Video diagram: By Jmgonzalez - Own work, Public Domain, RF Modulator Delete Github EasyFlash 3 Adrian’s To