Are online video ads more effective than TV?

Yes online video is effective as compare to TV ads if it is attractive , to the point and deliver message in a professional way.
Regarding TV ads you don't know how many people saw your video on TV.
It's very difficult to measure ROI for a TV ad but for Online Video ads you can measure ROI easily.
Through online video you can deliver message to your target audience while TV ads can't be for a segment of people.
In some cases TV ads can also be very effective depends on the Brand , industry and the requirements.

Sure if you find the right way to market those videos, Because of a simple reason, How it will be affective without publishing it on the best chosen web sites? First you will need to upload it on your Youtube channel, Write your company name on the videos' title, Post it on your Facebook, Twitter and Linkedin accounts.
Announce on your site about this video, Simply let it appear everywhere you know your consumers are on it.

It entirely depends on your target audience and the product, if you've got a product that is more likely to be attracting the young crowd then you should not be advertising on TV at prime time where they show all grown up soaps...if you're targeting housewives to buy the product then do it on the prime time...if you are selling geeky gadgets, find relevant channels on youtube and other websites and advertise there...
Online and TV Media are both powerful source of advertisements and only a good study about your product, target audience can help you decide which medium to use...
recently people have shifted from TV to PC in a much greater number just to avoid advertisements so whatever ad you make, you make sure it grabs attention from .01 sec hope it helped.

Depends on how do you define effective......
in a brand awareness campaign for an FMCG product, online videos can't be considered better than TV ads because of the reach volume is still much more lower, but talking about lead generation campaign for an already branded MBA program in a prestigious university; online video will be your best choice.

first of all galance a market where you wants to launch the ads....
for example in developed countries people hv more access on internet but on the other side in under developed countries you should really on t.v radio etc

Yes so effective and more creative

In this modern world online video ads is the best way to deliver the message to target audience.Advertisers might be able to save money by utilizing those ads already in the hopper.
Even when controlling for exposure, we see that re purposed TV spots resonate quite well in the streaming full-episode environment.

yes far more effective in my book.
it just that if you are watching a TV show and ads break happen during the episode a lot of people stop watching the TV and do there own stuff.
for online video ads is far more different "people can't ignore it especially if you are watching a video stream and an ads pop-up before the episode starts" and besides that, A lot of people don't watch TV in normal condition except for the time were there is a certain TV show appears on TV.

what about popup ads? that appears so many times and i have never clicked in my life.

does anyone the benefit of those ads?

a proper advert on video is very powerful tool if it is reaching the target audiance, the only risk involve in it is when you skip it....

 

Yes a online video ads is more effected from TV ads. Because of online user are more punctual from TV gallery. Attractive & effective video ads in online more more effective.