NBC Universal has sold a E3 million ($3.57 million) stake in TV and Internet gaming channel Giga to European equity firm Wellington Partners.

NBC U remains a minority owner in the digital web, which showcases online gaming and Internet content for vidgame-savvy auds.

Company sold off nearly 70% of Giga last year to Turtle Entertainment, operator of Europe’s biggest online gaming league, and Cuneo, a Munich-based media investment company.

Giga, once part of the NBC Europe analog channel, was relegated to digital TV last year when NBC U transformed the terrestrial web into Das Vierte, an outlet for classic movies and TV series.

Yet digital Giga could prove an interesting enterprise for its new investors.

Wellington said its investment will help Giga “expand its position as the largest digital TV network for the gaming and e-sports community in Europe.”

“This new round of financing will enable us to speed up production of content for our network and the Internet and to simultaneously link the content from the two more strongly with one another,” said Jens Hilgers, Turtle CEO and Giga co-managing director.

Company is focusing on IP-TV, which enables TV content to be streamed or downloaded over the Internet on a fee basis.

With its round-the-clock network, Giga is operating in one of the media industry’s highest-growth submarkets, gaming.

Giga is linking transmission of such popular games as “Warcraft,” “FIFA 2006” and “Live for Speed” from the Electronic Sports League with information relating to online, console and PC games as well as technology and entertainment.

Michael Woelfle, Cuneo topper and Giga co-managing director, said membership in the Giga community is growing rapidly, with some 10,000 new members signing up each month.

Overall, Giga and the ESL have more than 1 million members, while Giga TV reaches more than 30 million TV households in Europe via satellite, including 7 million in Germany.