I don't see it likely that anyone would feel 'encouraged' to try something they had not previously expressed a feeling for in advance.
IE I do not believe that seeing a strap-on or hearing about anal sex from the programme would of itself encourage those among viewers.
The programme was giving factual information where some teen may feel inhibited in asking a parent, be given rubbish information by another teen, or be ripped off if they happened to go into some shop run by Private or Ann Summers (don't know what they do/don't sell in either, as it is years since I popped into any such shops in London's Soho, and if there is something one wants, buying online is easier these days for many).
As for 'negative effect' I would probably think worse of some magazines available to teen girls of all ages (based on the comments posted online, suggesting the mags cover many aspects which parents again may have no knowledge of, or would be inhibited from discussing).
I do have a problem with women (often) being pressured by peers / media into diets and tanning and beauty products as if they are an "easy touch" to rip-off.
I particularly noted the number of adverts before Christmas for perfumes and after shave, over and above the Max Factor / etc eyelash / hair dye / face creams / cosmetics which may boost confidence, but to me seem something of a con.
On a parallel level, magazines include 'techniques' while lads mags may be smuttier and then there's outright porn, which all (in their own ways) tell us we are unhappy with whatever experiences we have, and give 'ideas' for things that would be more exciting (and could be dangerous).
The media and porn together seem to push people to feel unhappy unless they follow fashion, or trends, or try this, or that in/out of bed.
It's down to individuals to break from being brainwashed, and if that means that parents should try to be open-minded, lay down guidelines and explain some of the (terrible) consequences of drink, drugs, sex (STIs perhaps more than piercings etc) then so be it.
When it comes to information, taboos over sex make it an easy target for criticism of any materials on TV or online because "one doesn't talk about such things" where perfume and make-up are expensive cons but treated as "normal" because they don't have the same "naughty" taboos around them.
Sorry if "one doesn't" also sounds pompous!