What does “APDTV” mean?
APDTV stands for Analog Pure Digital Television. The tag is sort of an oxymoron, as analog and digital both appear in the tag and are completely different in the world of television. Let’s break it down. The source of A/PDTV is 576i/576p (or in the US 704i)- it’s a step above a DSR (480i) but lower than HDTV (720p/1080i). PDTV itself is digital, but in this case APDTV is analogue (hence the A in front of PDTV) because it was capped by any of the ways allowed as specified in the scene rules for AHDTV which you can read below. You can also read more about PDTV here.
AHDTV stands for Analog High Definition Television. The tag is defined in the SD and HD x264 TV rule sets: ª - HD video taken from the decoded HD output of a set-top box (e.g. ª ª component, DVI, HDMI) must be tagged in dirname as AHDTV. Decoded ª ª output of PDTV or DSR sources is banned. Releases taken from a natively ª ª recorded transport stream shall be tagged as HDTV, PDTV, or DSR. ª ª - AHDTV captures must be done at the native format of the channel, e.g. ª ª 720p or 1080i. ª │ - Video taken from the decoded HD output of a set-top box (e.g. │ │ component, DVI, HDMI) may be used as a source; source must be tagged │ │ in dirname as AHDTV. Releases taken from a natively recorded transport │ │ stream shall be tagged as HDTV and do not dupe AHDTV releases. AHDTV │ │ releases do dupe HDTV. AHDTV captures must be done at the native format │ │ of the channel, i.e. 720p or 1080i. │
So far the scene has only done one release tagged as APDTV. It belongs to the group C4TV and was tagged as internal.
As stated in the release NFO:
Looks pretty rought hence the INT. I don’t believe this was broadcast in HD. Seems the rest of the ITM Cup is being done in HD, just not this game. Enjoy anyway.
For whatever reason this single ITM Cup game was broadcasted only as 576i instead of the usual 720p or 1080i the capper was normally doing. The APDTV tag is not officially recognised in the scene at this time.