In comparison, professional-level Betacam SP tape produces approximately a 440×486/576 resolution and some college TV studios use Super VHS at approximately 560×486/576, along with an increased colour carrier bandwidth. Both of these systems, whilst showing a marked improvement over VHS, ultimately offer lower resolution images than DVD, but are still comparable to (and thus remain useful for) lower-bandwidth broadcast television, which is compromised in the analogue domain by a narrower available frequency range for each individual channel, and in the digital by a literally lower horizontal pixel count (often 480 or 544, versus the 720 of DVD and full-rate SDTV broadcasts). Again, both systems offer high motion and a high vertical resolution by way of interlacing, and are more justifiably counted as SD rather than LD.