I have a blog that is automatically getting fed content on a daily bases. None of the posts currently have tags included on the posts. Does anyone know of a wordpress plugin that will automatically add tags to the old existing posts if I enter in a list of all the tags needed? For instance, it is adding television episodes. Here is an example of the title of the post: "Greys Anatomy-07×20". I would like to add the tag "greys anatomy" and have it automatically add all of the posts with "greys anatomy". Basically this is needed for SEO so I can focus on ranking for keywords including specific episodes like: "watch greys anatomy online" and it would be a link to my tag like: mysite.com/greys-anatomy/ and that URL would list all my posts in descending order showing all my episodes for greys anatomy. Just asking on here if anyone knows exactly what plugin will do this.