I'm an amateur.
Anonymous posted an answer for this Akai PTH5498 54" Rear Projection HDTV-Ready Television:
"On the Akai PT429HD? No, you need the original Samsung, as only it has the button to save..."
Anonymous posted an answer for this Hitachi 46UX24B/25K 46" Rear Projection Television:
"Sounds like a convergence problem. First, try using your set's user convergence mode."