Personally I think its a silly rule.
The television broadcasts are the 2004SE, I have the DVDs, I've paid for them four times (because my sister and god children wanted them), the television broadcasts are not available on blu-ray (the resolution is different from the BD sets and they have different properties).
Naturally I will follow the rules of this site but I shan't get the blu-rays for a very long time (I don't even have the equipment to play them and anyone I know who might want them and does have the equipment would probably buy them for themselves).