Yes. What will happen is if you are in the border area and you receive American stations right now over the air, they will be digital after June. You will still receive them over your cable and satellite if you have satellite. If you receive them over the air, you have to have a television set that is capable of receiving a digital signal, and if it's not built into your set, you need a digital antenna.
On March 25th, 2009. See this statement in context.