Your Mac Life, an Internet-based Mac radio show, has announced its lineup for tonight’s broadcast (21:00 – 23:00 ET), which will feature Larry Horn, Vice President of Licensing for the MPEG LA group, who will discuss the issues surrounding MPEG-4 licensing, which Apple has accused of holding up the release of QuickTime 6 and other MPEG-4 compatible products. Other special guests will include cartoonists Nitrozac and Snaggy of GeekCulture and Alias|Wavefront President Doug Walker. Host Shawn King will also announce the first leg of his Mac User Group Tour.