As follows. Feedback welcome!
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Two-part episodes can cause contention on whether they should take up a single episode number, or two separate consecutive episode numbers. If this happens, refer to the order of the valid sources as listed above and note that on-screen indicators are considered the primary official source and trump anything else. A few examples:
- If the two parts air on two separate days, two separate episodes should be created.
- If there is a break between the two parts, two separate episodes should be created. Examples of a break are credits or titles appearing on screen for a second time; or a voice-over introducing the second part.
- If there are separate titles (even if the only distinction is "Part 1" versus "Part 2") for the two parts, two separate episodes should be created.
- If there are separate cast- or crew-credits for the two parts, two separate episodes should be created.
If the Episode contains none of these indicators, it should almost definitely be a single entry/episode number. Only if on-screen indicators are unavailable or inconclusive, the other valid sources should be considered in their respective order. Note that DVD numbering should never be considered. Production codes as found on official sites or in press releases can be used as an indicator, but specifically do not trump the on-screen indicators listed above.
