Television commercials are a powerful medium of advertising partly because the underlying technology is so flexible. Unlike print or radio ads, TV commercials allow you use both video and audio to communicate your message. Not only can more information be transmitted to the viewer, but video and audio can reinforce each other and increase the impact of both. Think of some of the recent television commercials you’ve seen, then imagine them with video but no audio, or with audio but no video. By appealing to two senses instead of one, TV commercials have the potential to be a much more impactful experience for the viewer.
In addition, the barrier to entry for high-quality TV commercials been drastically reduced since the first days of television commercials. HD video, high-quality audio, and motion graphics are within the realm of possibility for even an affordable TV commercial production company. The democratization of the internet and ease of publishing also means that they can help spread your marketing messages to as many channels as possible.
TV works better than any other form of advertising. It generates the highest absolute volumes of sales and profit whilst also delivering the best ROI. However, you need proper econometric analysis to unpick this.