The giveaway is that DISH is the ONLY EPG that I know of with such an option, so not rocket science to figure out.
But also a small correction for you - the ALL SUB option on DISH does NOT hide ANY of the PPV's, so it's a moot point either way.
You have to create a favorite list to accomplish this with DISH as well.
While the AS option is nice, the fact it does not hide PPV defeats it's purpose, for myself anyway.
Doesn't really matter you did mention "another device"/provider - ALL providers have certain exclusive features, so not really a biggie either way.