OpenTV (OPTV) was up 27.7% by early afternoon.

The interactive TV software maker announced late Monday that its products were now installed on 16 million set-top boxes worldwide, a 105% increase over a year ago, with deployments in the March quarter rising 30%. The company credited much of the growth to deals with

DirectTV Latin America

,

EchoStar

(DISH) - Get Report

and

BSkyB

(BSY)

.

The software enables e-mail and e-commerce as well as various TV services.