[noggin]

Here is a comparison:

Transformers 576i: https://dl.dropboxusercontent.com/u/5572...formers.ts
Transformers 576p (w3fdif aka bbc deinterlacer): https://dl.dropboxusercontent.com/u/5572...weston.mp4
Transformers 576p (Yadif): https://dl.dropboxusercontent.com/u/5572...-yadif.mp4

Isn't the original clip 25p (i.e. a film or film-look source) within a 50i signal - i.e. no intra-frame motion? Isn't it a better test of a de-interlacer to see how native 50i content is de-interlaced to 50p - i.e. see how motion between the two fields within a frame is handled? Isn't that the more taxing process and the one where you see more quality improvements on the more sophisticated algorithms? A good test is a mix of 25p and 50i motion in the same frame (i.e. a 50i credit roll on the left with a 25p film-source clip on the right?)

De-interlacing native 25p content within a 50i sequence should ideally perform like a standard "weave" as with no motion between fields there is nothing really to be gained in doing anything else?

If I get a chance I'll try a Weston 3 Field de-interlace on some high quality 1080/50i stuff I've got.