You have an ipod video but got a new computer if you connect your to with blank itunes will it delete music and videos?

No, connecting your iPod Video to a new computer with blank iTunes will not delete any of your music or videos. When connecting your iPod to iTunes, it will automatically sync the content from your iPod to iTunes. This means that any music or videos that are already on your iPod will be copied over to your new computer. Additionally, any new music or videos that you have added to your iTunes library since last syncing your iPod will be automatically added to your iPod.