Strictly Come Dancing leads a host of dance shows on to the floor
From documentaries to talent contests, the hit has paved the way for a gentler series of programmesIt introduced a generation to ballroom dancing, had households across Britain debating the finer points of the rhumba and the cha-cha-cha and this year has made a national hero out of Ed Balls, whose cheerful willingness to perform outrageous routines to everything from Gangnam Style to Great Balls of Fire has made him …