Visualizing large tabular data

I'm trying to find the best way to visualise the following tabular data.

Problem:

There are several channels and each channel has two platforms. The value of the channel's platform could range from 0 to millions. The number of channels could also grow to over 50. What I'm looking for is a method to visualise this such that the user could easily tell at a glance which platform has the highest/lowest value. I initially thought that a butterfly bar chart would be good for the problem but have now ruled it out as I only have limited screen space to work with.

I was wondering if there's a clever way to visualise this on small screen real estate?