By the early 1990s, United Video began encouraging cable systems still using either the full- or split-screen versions of the Amiga 1000-based EPG Sr. to upgrade to the Amiga 2000-based Prevue Guide. Active support for the Amiga 1000-based EPG Sr. installations was discontinued in 1993. Like the Amiga 1000-based EPG Sr., Prevue Guide also ran from bootable 3½ diskettes, and its locally customizable features remained configurable only from the local keyboard, subjecting viewers to the same on-screen maintenance-related interruptions by local cable company employees as before (silent remote administration of locally customizable features would not be added until the "yellow grid" appeared shortly after the beginning of the TV Guide Channel era, when the Amiga platform was fully abandoned). To support Prevue Guide's new, satellite-delivered video and audio, each Amiga 2000 featured a UV Corp. UVGEN video/genlock card for the satellite feed's video and a Zephyrus Electronics Ltd model 100 rev. C demodulator/switching ISA card for manipulating the feed's audio. Also included were a Zephyrus Electronics Ltd. model 101 rev. C demodulator ISA card for the WGN data stream, and a Great Valley Products Zorro II A2000 HC+8 Series II card (used only for 2 MB of Fast RAM with SCSI disabled). The 101C fed demodulated listings data at 2400 baud from a DE9 RS232 serial connector on its backpanel to the Amiga's stock DB25 RS232 serial port via a short cable. The 101C also featured connection terminals for contact closure triggering of external cable system video playback equipment.
ClearStream's final entry is the 4MAX, which is an improvement on the 4V when it comes to range and general setup. Quality-wise, this offers what you'd expect from the previous ClearStream antennas with a 70- mile range and 4K capability. That said, the 4MAX is able to bump up the range a bit in the right conditions. And it does use a more streamlined design over the 4V, making the overall setup much easier and saving a bit of space.