TV nostalgia site, TVparty.com, has an interesting take on changing access to their previously free content. From their TVparty Plus page:

When you donate a mere $7.65 to TVparty you get full access to the enormous archives - over 500 pages, more than 40 HOURS of streaming media files in Real Player format. After you pay, you'll recieve a URL to access the site - that URL will be good for TWO MONTHS! What a bargain - the movie theater won't give you a deal like that! This is not a subscription - it's a one time offer!

It seems they would like to convince you that this is more along the lines of a video rental service.