I'm not sure if this has been mentioned before but I just installed my new led ocd board in my TSPP. The tv modes on the sign were noticeably dimmer. I had to manually add them into the csv file in order to change them back to 100%. The lights are the entire 10th row:
73,Duffman TV
74,Homers Day TV
75,Willies Woes TV
76,Wiggum VS Snake TV
77,Barts Day TV
78,Krusty's Last Stand TV
79,Stop The Monorail TV
80,Alien Invasion TV