Heyyyy current student here. The amount of theory and practice in the course is mostly 50/50. You have the opportunity to do both. The optional modules you choose can make the course more theory or practice, so it's really up too you how much you want to do.
I think it's worth noting though they media and comms and digital media are very different degrees. In digital we focus a lot on design and are specifically based around new media and ways of communicating. For example, you could create logos, websites, podcasts, films, mobile games etc in your practical courses.
I imagine our theory is different as well since us and media and comms are based around different types of media.
Hope this helps xx