Television and Home Theater

I have a Magnavox 6p5435-w101 television that my neighbor gave me. He said that the only problem with the set that he's had is that the picture is kinda fuzzy. It gets decent color in red, blue & green & I've made the necessary adjustments thru the tv controls but it doesn't seem to make  much difference in the fuzzyness. I'ts not terrible, but I was just wondering what might be the cause of this.  The set was made in 9/96. Thanks for any help.

 I have  a Mitsubishi WS-65869 I bought new about 5 yrs ago, I havent had any problem until today. I was watching TV this morning when the picture went blury more like a double image and there is a green wave across the top of the screen and above that a redish purple color. The tv still works and I have hit the rest but no changes. CAN anyone Help?

Tony

I've got a Samsung HCN4727W that started having convergence issues out of blue.  No warning or anything.  I tried the perfect focus but it only goes to 4% and stops.  After reading some posts on here, I ordered the service manual and went in to try and set the convergence myself.  I can set the red and green, but the blue won't move at all.  Any ideas?  Does it sound like I need to replace the complete convergence board?  Am I correct that the part number is BP95-00142p?  Is there a difference if I order the part from samsungparts.com or partstore.com