What does it mean to 按时收听? I've been listening to a great mandarin podcast recently called "imandarinpod". At the beginning of every podcast the host says something like this
"谢谢大家按时收听我们的节目“。 I've looked up the translation of 按时 （an4shi2） and it comes out to be something like "On Time". However, I'm not entirely sure if that makes sense in this context (especially since it is a podcast). 

Can anyone give me an idea of what 按时收听 really means?
An example of 按时's usage will be like:
按时服药 - take medicine on time

Where 按时 refers to being on time periodically.  In your case, the podcast might be on-air every night at certain time, thus using 按时.  However a better translation for will be:
"谢谢大家准时收听我们的节目"