Codes and manuals for most One For All remotes are available here: http://www.oneforall.com/support/manual
. Select Universal Remote Control and then your specific model to download the manual as a PDF. Note: some of the English only manuals truncate before the code list which follows the Spanish translation for bilingual manuals.
For example the codes for the 8820N are CRT: Philips 1454, 0054, 0690, 1744, 1867 and Magnavox 1454, 1866, 0054, 0096, 0802, 1198, 1254, 1365, 1931, 1944, 1963, 1990
LCD: Magnavox 1866, 0802, 1198, 1365, 1990 and Philips 1454, 1744, 1867
Plasma: Magnavox 1866 and Philips 0690, 1744
Combination units have additional codes. Please note that if the remote is older than the TV, you may need a new remote. Codes are usually limited to those for devices released 6 months or more before the remote was programmed.
I hope this helps. If you can't find your model, please let me know and I'll try to find the code. Just provide your TV type (CRT, LCD, Plasma) and the remote model.