TV Guide app data usage very high

Recently I had a look at my mobile data usage on my Nexus 4 phone and was surprised to see in the last month the TV Guide app had used 100MB, this was surprising as I hardly use this app, the app size is only 2.2 MB so what else was using the data, I thought this was very strange and quickly removed the app from my phone. Think it would be nice for companies like this to tell users what they are doing that means high data usage when you are not actually using the app.