The more annoyed I am that suddenly the Eye of Harmony is located inside the Doctor’s TARDIS. That needed explanation. Seriously, what was the point of the Doctor stopping in Cardiff to fuel up if he had the Eye of Harmony on his ship this whole time? My understanding was all TARDIS had a link to the Eye of Harmony which was located ELSEWHERE and destroyed in the Time War which is why the Doctor had to find alternative fuel
Any ideas, opinions on this?