Audit Bureau of Circulations figures, to be released in February, are expected to show that the title has leapt above IPC Media's What's On TV by 60,000 copies.
ABC data for the six months to the end of June 2007 had TV Choice, which sold an average of 1,391,774 copies, 30,712 behind What's On TV. The next set of data covers the whole of 2007.
TV Choice is priced at 38p, 7p cheaper than the IPC title.
Fiona Dent, the managing director of IPC TX, said: "TX has maintained a strategy of driving cover price in the TV weeklies market through consistent editorial innovation, which in turn delivers extra value to consumers."
Kathy Day, the publishing director at Radio Times, said: "Our market monitoring suggests market leadership in term of volume will move to TV Choice in the next ABCs, whereas market leadership in terms of both retail sales value and advertising revenues remains with Radio Times."