The average hourly cost for a television audio quality improvement service from a television repair service is approximately $150. Factors that may affect the cost include the type and quality of the accessory, the complexity of the job, and the location and service provider. The cost breakdown for the service typically includes labor costs, parts, and any applicable taxes and fees. The labor cost is usually the highest cost, and can range from $100-$200 per hour depending on the complexity of the job and the experience of the technician. The cost of parts can vary greatly depending on the type and quality of the accessory being used, and can range from a few dollars to several hundred dollars. Taxes and fees may also apply, depending on the location and service provider.

When selecting a television repair service, it is important to consider the quality of the service, the technician's experience and expertise, and any applicable warranties or guarantees. Additionally, it is important to ask for an itemized cost breakdown to ensure that all costs are accounted for. Finally, it is important to research local service providers to ensure that the cost of the service is competitive.