iTunes has Batman: The Complete TV Series (Digital HD) to own for $20 downloaded. Contains all 120 episodes of the 1960s show starring Adam West as Batman. VUDU has it for the same price.
Smallville: The Complete Series (Digital HD) for $50 downloaded (also Google Play and VUDU) Wonder Woman: The 1970s Complete Series Remastered (Digital HD) for $20 downloaded (also VUDU)
$20 retail: $100Report