The online movie delivery triangle featuring Blockbuster, TiVo, and Netflix is moving forward. The struggling Blockbuster is getting a new lease by teaming up with TiVo. The deal is likely improve sales for the two new partners.

Blockbuster announced the partnership with TiVo, which calls for the latter company to deliver Blockbuster’s digital movie library online to TiVo digital video recorders that are attached to TVs.

Tivo will also get something in return. One, it will be able to sell its DVRs at many of Blockbuster’s 4,000 U.S. U.S. retail locations. Since Blockbuster On Demand will be available to TiVo’s 800,000-strong owners, TiVo will be able to reach a new movie-watching audience. Compared with Netflix — the other major movie provider — Blockbuster has a relatively small selection of fewer than 10,000 titles. Blockbuster typically charges $3.99 for watching a recently released movie, while Netflix, which has a massive film library, needs a subscription.