Are free trial periods for video streaming services destined to fizzle out as a response to trial-stacking, or will they stand the test of time? Some might consider it anti-consumer, but then you wouldn’t expect a 30-day free trial for services like broadband, or the latest 5G package, or landscape gardening. Free trials were discussed at length during this week’s OTT Blitz event from the guys at FierceVideo and The StreamTV Show. As you would expect, we heard a mixed bag of viewpoints on the value of free trials – ranging from critical for customer acquisition, to transformed fortunes after scrapping free trials altogether. Disney+ was an early mover in ending its own 7-day free trial in the US only…