Legal issues around product placement in TV and films generally revolve around transparency, disclosure, and potential deception to the audience. Regulations vary by country and jurisdiction, but common concerns include:

1. Disclosure - Many countries require clear and conspicuous disclosure of product placement to viewers, ensuring they are aware that certain products are being featured for promotional purposes.

2. Deceptive Advertising - If product placement is not disclosed and is presented in a way that might mislead viewers into thinking it's a genuine part of the storyline, it can be considered deceptive advertising.

3. Content Regulations - Certain products like tobacco, alcohol, and prescription drugs might be subject to additional regulations regarding their placement and portrayal in media.

4. Child Audience - There might be additional regulations for product placement in content directed at children, to prevent undue influence.

5. Fairness and Competition - Overly aggressive or exclusive product placement might raise concerns related to fair competition, especially if it hinders other brands' ability to participate.

6. Cultural Sensitivity - In some cases, the placement of certain products might offend cultural or religious sensitivities, leading to potential legal issues.

7. Endorsements - If actors or characters promote products without disclosure, it could potentially violate rules related to celebrity endorsements and advertising.

8. Intellectual Property - Proper permissions and licenses should be obtained for using trademarked or copyrighted products in media.

It's important for creators and producers to be aware of the specific regulations in their jurisdiction and to work with legal experts to ensure compliance with all relevant laws.