Board Thread:The Panopticon/@comment-1827503-20141023232658/@comment-1827503-20151006145505

The first episode of all two-parters from Series 2 to Series 4 (including Utopia) had "to be continued" at the start of the end credits.

Series 5 and 6, with the sole exception of The Pandorica Opens, did not have "to be continued", so we cannot use this to determine whether A Good Man Goes to War is part of a two-parter.

Series 8 had only one two-parter, which used "to be continued", muddling this even further.

It's also relevant to note that Turn Left did not have "to be continued", unambiguously placing it as standalone given the credits of the RTD/Tennant era if we use "to be continued" as proof.