I believe that this what is trying ot happen is pretty much a happening of regular conversation. In a normal conversation, a question is usually answered, and develops into talking about something similar to the general topic, but not to specifics, since the specifics has already been covered.
Maybe what would have been appropriate (myself included) is to ask a question about contestants being brought back to a show, rather than to simply post information about another show, because it seems to promote more discussion. I think with the "Concentration Double Play" scenario, if the nephew had given information about how double play works and then said that they know this because the aunt had previous experience, it would be appropriate.
With that, I am going to ask if anyone knows if the Scrabble players were given another chance with game problems. I recall in 1987 episodes Charlie Tuna said, "Due to technical problems, (insert round here) was replaced and the program edited." Do you think it was treated as a "throw out the puzzle and we'll go with another one to make it fair", or did they play it out, and the losing player was given another chance?