I want to know the answer to the following question:
For how many years was the 1986 television rights contract?
All the background I'm provided with is that "Television money had also become much more important; the Football League received £6.3 million for a two-year agreement in 1986, but when that deal was renewed in 1988, the price rose to £44 million over four years.". Is that enough to answer the question?