I am in the middle of this upgrade but here is how I am doing it.
I removed the old power hungry CRT TV and donated it... IT's history now.
I managed to seperate the bottom of the cabinet from the sides, Cut the sides so they are now "Flat bottomed" as it were and re-attached the bottom, now flat.. Cut down the trim so it fits, and am having a custom panel made which will become a door, along with a few extra fittings a very useful door, I'll mount the flat screen to the door, eventually..
Inside the cabinet I plan on lying 2x2 "Furing" strips so I can route cables in walls, I'll put in some PVC tubes for cables that go from side to side, this is all to make future additions easier, not entirely necessary..
Then Ill panel inside the new Cabinet, and add shelves,, All my CDs (Well most of them) DVD's and perhaps some other stuff will get stored there. Major clean up will free up other cabinets and make my day.
Right now it looks good, (With TV and trim in place) but it's a long way from done (Good day's work)
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times