In general, a home office deduction is allowed if the home office meets at least one of three criteria: 1) the home office is the principal place of business; 2) the home office is the place where the business owner meets with clients and customers as part of the normal business day; or 3) the place of business is a separate structure on the property, but is not attached to the house or residence. The deduction is figured on the size of the home office as a percentage of the total house or residence. For example, if the total house size is 2,400 square feet and the home office is 240 square feet, 10 percent of the total house is considered used for business. That would allow the business owner to deduct 10 percent of the household's costs for electricity, real estate taxes, mortgage interest, insurance, repairs, etc. as business expenses.

Unlike mass audiences, which represent a large number of people, a niche audience is an influential smaller audience.[2] In television, technology and many industrial practices changed with the post-network era, and niche audiences are now in much greater control of what they watch. In this context of greater viewer control, television networks and production companies are trying to discover ways to profit through new scheduling, new shows, and relying on syndication.[citation needed] This practice of "narrowcasting" also allows advertisers to have a more direct audience for their messages.[3]