What are "Points" & How Do They Affect My Interest Rate? (S5 E8)

Realtor John V. Pinto & Senior Loan Officer Abel Fregoso of
Homebridge Lending explain how you can adjust the interest rate
on your home loan by increasing or decreasing the "points".
 How one factor in your decision should be the answer to the
question "How long do I anticipate owning this property?"