Media day at the Consumer Electronics Show in Las Vegas was held Monday, where YNN's Adam Balkin found out that some of the devices you may have just bought for the holidays already have an expiration date.

If there's one certain thing at CES media day it's that the back-to-back press conferences will be, for the most part, filled with wall-to-wall TVs. The other near certain, all those new TVs unveiled will confuse and frustrate you when it comes to deciding what to get next. This year the buzz concerns 4k TV, 8k TV, and ultra HD TV.

"I think people don't even need to know what 4k and 8k is all about just this new term Ultra High Definition. Initially it's going to be eight million pixels or four times the resolution of today's HDTV which is a phenomenal experience particularly on large screen sets," said John Taylor of LG Electronics.

The other big media day story was a pair of self-driving car prototypes which we'll delve deeper into during our continuing coverage this week.

The big change to this year's media day that's worth mentioning is the big pre-CES keynote, the one that gets the most media attention. It has traditionally been given by Microsoft, delivered by Bill Gates or Steve Ballmer. But after last year's CES Microsoft said, because of marketing reasons, it would no longer have a big presence here: No booth, no keynote.

Qualcomm, which makes the chips that power many handsets and tablets, took the coveted spot and actually helped keep the streak alive by inviting up Microsoft CEO Steve Ballmer to show off some Windows 8 devices.

Qualcomm actually brought up a host of guests from movie producers to Nascar drivers to Sesame Street's Big Bird to demo some upcoming innovative uses for smartphones, including a new program that helps kids find and spell words in the real world by pointing the phone's camera at them.