Tvheadend

Dunno but a quick check using chromium on openSUSE 15.0 against my TVH 4.2.6 seems to work OK, showing both horizontal and vertical scroll bars.

The EPG is different to the other pages, it always only shows a single page. But it should be scrollable and thus able to show everything.

I'd suggest the problem is more likely to be with the browser than with TVH. Have you tried a different browser on the device? Or chrome on a different device?

I suppose possibly there is some configuration option in chrome that might affect scrolling. I don't know much about chrome, but it might be worth checking.

This is specific to using a browser on android

Get the same issue using firefox or samsung's browser

FWIW, I just confirmed this problem using Chrome on my Android-powered phone. A little googling shows that it is default behaviour on Android and iOS. Scroll bars are not normally shown on those operating systems.

You can scroll just by dragging the content. This works on the TVH pages but apparently on the EPG page there's a quirk. It's easy to scroll horizontally and once you have done so, it is possible to scroll vertically but only by dragging the extreme right edge of the display, in the narrow bit to the right of the Content Type column.

This feels like there might be a way to tweak the HTML/CSS or something to enable vertical scrolling by dragging anywhere in the EPG. I don't know enough about the implementation on Android or iOS to understand what's possible or practical. I gather that 'here be alligators'.