Brilliant Builds: Extending Your Home (Season 1 Episode 3 of 7): Kirstie Allsopp and Phil Spencer look at the best ways to make a budget stretch. Kirstie and Phil's Love It or List It: Brilliant Builds airs on Channel 4 +1 at 6:15 AM, Sunday 11 February. Kirstie Allsopp and Phil Spencer look at the best ways to make a budget stretch