In the midst of many ridiculous claims about the number of HDTV channels that companies are going to soon be offering, one player has been suspiciously quiet. But perhaps that’s because Cox is actually enacting a reasonable plan for HDTV growth, planning for 50 possible channels by year’s end and perhaps another 100 next year. In comparison with Comcast’s 800 channel prediction, the plan seems measly, but realistic. Cox is also taking a realistic approach to competition (resolving issues as they arise) and mobile video (which can be a supplementary service, not a competitive one).