Behind the lens controls is a well laid out control panel. Looking from the rear, there are a large Power button on the left and next to it, the Source button. Moving to the right is a pretty standard layout with a Menu button, four arrow key buttons and the Enter button in the middle of the four. There is also an Escape button. Lastly, on the right is a button to toggle between Aspect ratios.
Also on the top is a door for access to the lamp. That means that should you ceiling mount the projector, you won't have to unmount it to replace the lamp. You can easily see it in the image above showing the entire top of the projector.
A single large vent is near the front, on the left side (facing the front of the projector). It blows air out the side, and slightly forward (projectors with rear vents can't be shelf mounted.).
Finally, that takes us to the back and the input panel. The Epson lacks a digital input (DVI or HDMI), but has the typical color coded 3 RCA jacks (red, green, blue) for component video input. There is also an analog computer input (HD15) for hooking up a computer source. The HD15, can alternately be used for a second component video source. In addition there are the usual two "low resolution" video inputs - composite (NTSC/PAL/SECAM) and S-video. The Epson Home 20 projector also has a small rear facing speaker, and has a pair of RCA jack inputs for a stereo audio source. Lastly, there is an RS-232 connector for computer command and control, and a Kennsington lock slot for theft protection.
A user changeable filter is located on the bottom out of the way of the ceiling mount screws, so the filter can be changed without unmounting the projector.
That concludes our tour of the Epson Home 20. Time to investigate its image quality.