Presence is a user's subjective sensation of 'being there' in a mediated environment. Its determinants include the extent of sensory information within a mediated environment, the user's ability to control their sensors and modify content within the environment, and individual-difference based factors. Although direct subjective ratings of presence have been used, the construct may be unclear to naive observers, and previous work in our laboratory has shown that ratings of presence may be biased towards different characteristics of the display. In the present study focus groups were used to: (1) establish whether viewers refer to sensations of presence, unprompted, (2) identify viewers' descriptions of their experiences of stereoscopic TV, and (3) identify the program types best suited to advanced broadcast presentations. Results showed that non-experts describe sensations of presence without prompting while watching stereoscopic television, relating it to involvement, realism and naturalness. In addition, there was a general consensus that live events, such as sports matches, theatre and concerts are the program types best suited to high-presence broadcast presentations, through advanced broadcast services such as Immersive Television.