I have to agree that flawless is very subjective. And, frankly, no game show is, has been, or will be flawless, even Price, J!, and Wheel. I mean, how many "dud" pricing games has Price had over the years? Professor Price, anyone?
J! used to let the players ring in before Alex finished reading the clue (I would say that's about the only flaw J! has had because in and of itself, the game has remained exactly the same for 38 years with the exception of dollar values changing, not limited returning champs, and set changes.).
Wheel had that dreaded "Buy a Vowel" space in its infancy that forced a player to get a vowel, and if they didn't have $250, well F U then, you're losing your turn. Not to mention the horrid final years of the daytime show. Rolf was horrendous. Bob was great, but the budget and network flip-flopping were the nails in the coffin, not to mention network daytime game shows were fizzling out left and right.