When our TV cabinets were modified, only clear polyurethane was used, as Jerry noted. The finish seemed way too light at first, but as we were promised by Jim Sizemore and Greg Fulton, it darkened in a few months to match the natural cherry in the coach.
When I added some shelves to our linen cabinet a few years ago, I just bought pine and stained it with “natural cherry”; I was amazed that although the wood grain is somewhat different, the color is identical, and since only the shelf edge is exposed to obvious view, no one can tell it isn’t original.
We also had a galley slide out trim piece snag and crack, but I successfully glued and finagled it to where the crack isn’t noticeable.
Joel