Editing Television advertisement (section)

===Overlay advertisements===
Another type of advertisement shown increasingly, mostly for advertising TV shows on the same channel, is an ad overlay at the bottom of the TV screen, which blocks out some of the picture. "Banners", or "Logo Bugs", as they are called, are referred to by media companies as Secondary Events (2E). This is done in much the same way as a severe weather warning is done, only these happen more frequently. They may sometimes take up only 5 to 10 per cent of the screen, but in the extreme, they can take up as much as 25 per cent of the viewing area. Subtitles that are part of the programme content can be completely obscured by banners. Some even make noise or move across the screen. One example is the 2E ads for [[Three Moons Over Milford]], which was broadcast in the months before the TV show's première. A video taking up approximately 25 per cent of the bottom-left portion of the screen would show a comet impacting into the moon with an accompanying explosion, during another television programme. Another example is used in [[Poland]] to use any premieres of new shows/new seasons of the same show. [[Telewizja Polska|TVP]] has taken a step further, overlaying on screen not only the channel on which the show is premiered, but also on a sister channel.