It is important to use the same speed memory as is already in your laptop. Different speeds SODIM are physically the same, initially work but aggressive memory test will cause computer to crash!
Yes you can tell this is originally 1970s video tape. Some of the earlier shows were even recorded in Black & White because of some industrial action (over using the 'new' colour cameras I believe). But it is still a cracking good watch even after all this time.
What would have been fun (as an option) would have been the chance to watch the original 1970s adverts in the commercial breaks too.