Recently & with some help, I've managed to find a nearly complete collection of them across multiple sources and have begun the process of digitizing them. Unfortunately, I am based in New York City and the Pocketpieces in question are located in Washington, DC and Los Angeles so there will be a lot of travel involved over the next year or several years in order to get them all, but that is the next major project on this site. I'm not sure how Nielsen is going to feel about this, so it remains to be seen if this is something that will ever see completion, but I can't imagine that they'll care all that much about 40-50+ year old data.
I'm also not sure how I'm going to organize this within the current layout of the blog, but as I get more of them posted then I'll make some changes to better accommodate. I'm also quite aware that I have not yet finished posting the 2002-03 season, let alone the more recent 2010-2013 seasons, so that is also on the radar, but life has gotten very busy this fall and I can only focus my attentions on so many things. Hopefully 2002-03 will be finished soon.