There are two considerations: first, to avoid disputes. If these trademarks appear in these programs, or even negative information is not approved by the merchants, it is likely to cause some unnecessary disputes and contradictions and bring trouble to these TV producers. Secondly, trademarks that usually appear in TV dramas are sponsors of these TV dramas and will also appear in TV dramas for advertising. For businesses that have no sponsorship, that is, no money, there is no need for the TV production team to make such free advertisements for them. So we use mosaics to cover trademarks or business names.