I suppose I should wait until both parts have been broadcast before I comment, but in the interim, this was shit.
This looked and sounded like DW when Tennant was in it to me, lazy writing, unconscious references to other things - the interview with the Silurians was straight out of Planet of the Apes - lots of boring running around and a pointless continuity cash-in - this time in the form of a Pertwee monster.
Over reliance on the sonic screwdriver - here used (improbably) to hack a computer system. What's wrong with using the f**king keyboard? I'm starting to fear that the screwdriver is part of the 'branding' of the new Who and it is seen as his light sabre. The Doctor should be much more about cobbled together solutions and deep, gadget-filled pockets - which children love BTW - much more than a stick with a flashing green light - you cretins.
A few others things. Meera Syal cannot act and should not be on TV. Or the radio.
And why do they persist with this bollocks of the Doctor being the last of his race. Who dreamed this idea up? I have heard it several times now. He isn't.