Expect the unexpected and never say never. Give me three common traits and three things often said by people in the industry. Depends on the programme. In general I'd say No. Especially when ads are played over and over so many times.
People think here's a chance to make a cuppa or deposit a chocolate bar in the ocean.
Mind you with product placement in films the borders are becoming blurred. This is an area I'm very interested in. Who cares the TVs shit anyway. Well my tombstone wouldn't be made of stone. It might be a TV monitor.