Our smart TV lets us swap between our five (!) profiles. Each has different trackings and recommendations (other than Star Trek TNG, which apparently three of us have watched ;)) You might consider making a new profile ("cududa2" or something) and see if that has more diverse recommendations. Try adding / watching some of the ones that are novel compared to your other list, and see if that helps.

I agree, though, I'd really like to have a _full listing_ of shows.