Go to IRS.gov to get the facts on sale of a primary residence. I have no idea what CBS news was saying, but if you make less than $500K profit on the sale of your PRIMARY RESIDENCE, there is no capital gains tax.
The $250,000/$500,000 home sale tax exclusion - If you have a capital gain from the sale of your main home, you may qualify to exclude up to $250,000 of that gain from your income, or up to $500,000 of that gain if you file a joint return with your spouse.
Publication 523, Selling Your Home provides rules and worksheets.
Topic no. 409 covers general capital gain and loss information.