Found them at a local finishing supply store - you are looking for a "locking shelf hinge" - does the trick! Stupid heavy iron board style table now gone, material from it put to considerably better use.
When I got our new used TT home last month I found a shelf in a closet that the previous owners had used for their television similiar to this one. I had seen something like this at a local RV Dealer. Good mod...more space the better.
Is there a 17RR owner out there that can post a pic of the "ironing board" style table the trailer comes with ? It was such a POS I neglected to take a foto of it before I cut it up.
I have a 16P- the tables are likely similar. I can try to take some pictures when I get home in a few days. What exactly did you want? A few general shots- or something specific?