Chris here…
OK, first of all can I preface this post with a bit of a “disclaimer”, if you will, in that I’m not that long back from a long evening (guess what? Yep, you guessed - playing music, LOL!) and so this post is probably not going to come over as well as it could - however…
Now, I realise I’m going to come over as a bit of a jerk here, but…I can’t really see what your country of origin has to do with providing news about ThunderCats DVD releases?
I promise I’m not trying to criticise, attack, or cause any sort of problem, but I would have said the reason for you to speak to Sam is because you were talking to him a year ago and in the process getting exclusive firsthand news about the UK DVD releases, that we were posting on the front page and in the forums and getting the exclusive skinny on before anybody else: http://www.thundercatslair.org/forums/showthread.php?t=2474
Now, in fairness, one could make the point that if Sam wants/wanted to use this site as a means of publicising the DVDs, then it’s as much up to him to contact us - but, nonetheless, there are several ThunderCats DVDs available here in the UK that I for one knew nothing about, including a complete season 2 release and a boxed set featuring the entire ThunderCats series (all 130 episodes)! It would have been awesome if we could have been the first site to report this, or at least give detailed info as to whether these releases have any special features (such as the exclusive comic pack-in from the last set) or not. Also, fans are commenting about the fact that the UK release of Season 2 Volume 2 has no interactive game on it, despite the fact that the box states it does - again, this would have been the perfect thing to have asked Sam about. Unfortunately, none of the rest of us would be likely or able to contact him, because you (and, quite rightly and understandably, only you) were the one who had his contact info, and you were his contact at this site! 
Again, I apologise if I come off like a jerk, but felt this point needed addressing. Although to be honest it’s unlikely that there will be any future ThunderCats DVD releases in the UK, perhaps for the future it would be worth you passing Sam’s contact details over to Mark in his new role as co-Site Leader? 
I don’t think anybody said anything to the contrary, did they?
I said it seemed like our contact with Sam had dried up, based on the fact that there have been ThunderCats DVD releases in the UK that we’ve received no word on (such as the two I mention above) - I agree, there was never any mention that he’d be donating more than just one DVD set of the complete season 1, which is what Neil’s talking about currently having in his possession. 
I think Neil’s suggestion about this is probably the best one - with our 3rd anniversary coming up in December (and yep, it has been 3 years - this site launched early December 2005!), the run up to that would be the perfect time, and if it could be tied in with a ThunderCast episode, all the better! 
Take care… 