CANADA STOCKS-TSX rises as BCE-Bell Aliant deal lifts telecom shares

* TSX up 47.94 points, or 0.31 pct, at 15,363.07 * Shares of Bell Aliant, Talisman lead the way higher By Leah Schnurr TORONTO, July 23 (Reuters) - Canada's main stock index rose on Wednesday, helped by gains in telecom shares after BCE Inc said it would take regional telecom Bell Aliant Inc private by buying the stake it does not already own in the company. Oil and gas shares also rose after a report that Spanish oil company Repsol SA is considering a takeover bid for Talisma