I have a 56' Samsung DLP around 6 yrs old. I have replaced the bulb, color wheel and light engine board in the last 14 months so I have some experience. Luckily, I had an extended 5 yr. warranty on to cover the board which runs around $1k for the part.. ...Bulbs can last 1000 to 3000 hrs depending on the type of use the unit gets. Bulbs begin in to flicker, take longer to turn on and have decreased brightness as they begin to fail...Your set is a DLP given its age not an LED. You say you replaced the bulb/wheel module.?? They are two separate items...One has nothing to do with the other...Bulbs run $80-$125. The color wheels run $150 and up and are not that simple to replace...If bulb was just replaced I would take a look at the wheel. I was able to replace mine with a little help from youtube and some folks on AVSforum.
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