Advertisements Really? So if you had a theoretical 6 tuner S5, it wouldn't matter whether you had 30hr unit or a 300hr unit? If you were going from a setup with 4 single-tuner S2s, each with 400hrs (1600hr total capacity), are you telling me you won't feel crimped going to 2 dual-tuner S3s, each with 33hrs (66hr total capacity)? I didn't say the amount of space needed to record a show varies depending on how many tuners you have. What I am saying is if you have more tuners, you tend to need more recording capacity. There is a ratio of hrs/tuner that will make sense and it will vary among individuals.