Continuity mistake: Frasier goes into his booth and puts down the magazine featuring Madeline with the page open. Bulldog comes in and looks at the page, and says how attractive she is. But it is definitely not the same page that Frasier had been looking at a couple of shots before.
Continuity mistake: When Frasier is first looking at the magazine article featuring Madeline, we can see the page opposite the one he's looking at. The next shot shows a different page, even though he is supposedly looking at the same one, all the time exclaiming about how great she is.