I want to know the answer to the following question:
How many years after VHS was LaserDisk released?
All the background I'm provided with is that "LaserDisc was first available on the market, in Atlanta, Georgia, on December 15, 1978, two years after the introduction of the VHS VCR, and four years before the introduction of the CD (which is based on laser disc technology).". Is that enough to answer the question?
Answer: yes