sentences:  episode - about the idents.The idents were designed by branding expert Martin Lambie-Nairn, and first aired on the same day as the BBC1 virtual globe ident, also designed by Lambie-Nairn as part of a corporate rebrand of both channels.The idents featured a sans-serif '2' in a variety of different forms and environments usually accompanied by an element of the colour viridian and accompanied by a static corporate logo DOG below the '2'.