Would you like to receive coupons on your smartphone's digital wallet that are related to the products you're viewing on TV? Or forget the smartphone. How about buying products directly through your television using the remote control? PayPal announced it's working with television service providers to help power "television commerce," aka tcommerce. PayPal has entered into agreements with Comcast and TiVo as it tries to establish itself as a payment method for purchases made over the television.