In reply to The Lemming:
> Brain freeze, it was Amy Pond. The chemistry which was with David Tenant just wasn't with Matt Smith. And then Clara hit the screen and the show took a turn for the better.
> Pond was great but she worked better with David Tenant.
I hate to appear like a complete Doctor Who geek, because I'm really not, but Amy Pond never appeared with David Tenant, only ever with Matt Smith.