BusinessWeek's story about how billionaire Mark Cuban wants to jump-start interest in high-definition by hiring Dan Rather to host a one-hour news show is yet another sign the technology is starting to gain more momentum. The question is when will the market catch up with the buzz? For anyone who watched the recent World Cup in HD, there is little doubt the super-crisp picture quality makes watching TV that much better. And with more consumers snapping up large-screen TVs that can take advantage of HD, the market is slowly but surely being seeded. That said, the success of HD will hinge a few key issues: content will be extremely important because consumers need to seen a return on their investment. Following close behind will be how HD is priced by satellite, cable and IP-TV service providers. If the "privilege" of watching HD is too expensive, consumers may balk about jumping into the market even those the experience is compelling - much like they have taken their time to get excited about all those digital specialty channels. Cuban, who owns the HDNet television network and has made a big-time commitment to the technology, believes it's only a matter of time before HD hits the mainstream.