[person has weird illness]
"obviously it's X" -staff
"you're idiots. It's Y" -House
"ok"
[some other symptom happens]
"oh it can't be Y"
"maybe Z?"
[some other symptom happens]
"ok it's W"
[House is working on something unrelated and has an epiphany]
"It's V!"

I've mildly enjoyed the 3 or 4 episodes I watched last week, but does it ever change?

For a "genius detective puzzle solver" show he is wrong an awful lot.