Your intuition is right in this case. A 2kW oven is more than enough to heat small chicken up to temperature. The author lazily took the 165F temperature and put it into a blackbody calculator without converting the units. Anything but the metric system...
Assuming the chicken has a surface area A=1m^2 (corresponding to a perfectly spherical chicken of radius=25cm/diameter=50cm, a little bigger than usual) and is a perfect blackbody (just going to handwave this one).
with the incorrect temperature:
A blackbody with T=165°C (438 K) and A=1m^2 radiates P=2090 W.
with the correct temperature:
A blackbody with T=74°C (347 K) and A=1m^2 radiates P=824 W.
Also neglected is the incoming radiation from the ambient environment. Without this, the "power loss" is closer to measuring the chicken in deep interstellar space.
from a room temperature environment:
T=20°C (293 K) and A=1m^2 radiates P=419 W onto the chicken.
The net power loss of the cooling chicken on the kitchen counter is therefore something like 824-419 = 405W, rapidly decreasing as the temperature drops towards room temperature. e.g. at 50°C it's around 200W.
But ideally you could stuff it with a dozen thanksgiving turkeys themselves stuffed with ducks stuffed with regular chickens stuffed with sausages. Be prepared: there will probably be leftovers.
> In his 1807 Almanach des Gourmands, gastronomist Grimod de La Reynière presents his rôti sans pareil ("roast without equal")—a bustard stuffed with a turkey, a goose, a pheasant, a chicken, a duck, a guinea fowl, a teal, a woodcock, a partridge, a plover, a lapwing, a quail, a thrush, a lark, an ortolan bunting and a garden warbler—although he states that, since similar roasts were produced by ancient Romans, the rôti sans pareil was not entirely novel.
Apparently it was on at 17:30 on Channel 4, listed as "4 Computer Buffs" [0]. Channel 4 was an independent TV station, and one of only four over-the-air channels.
From another site [1] the show was one of a short series of 7 programmes, probably hosted by a professor on a sabbatical. You can cross-reference the time slot on the first site. In the same time slot, at other dates, are other computer-related shows like Me and My Micro [2].
In the UK, it was an era of affordable home computers and hobbyist activity in the media. There was a large variety of microcomputer systems, with one or more hobby-level magazines dedicated to each manufacturer. Television programs would often partner with magazines to present a column, recap, or serve as a reference for more detailed work. You see some screen time dedicated to building hardware, as I/O was very primitive and you had to do the grunt work yourself. Made to order PCBs and surface mount was quite a way off.
Assuming the chicken has a surface area A=1m^2 (corresponding to a perfectly spherical chicken of radius=25cm/diameter=50cm, a little bigger than usual) and is a perfect blackbody (just going to handwave this one).
with the incorrect temperature: A blackbody with T=165°C (438 K) and A=1m^2 radiates P=2090 W.
with the correct temperature: A blackbody with T=74°C (347 K) and A=1m^2 radiates P=824 W.
Also neglected is the incoming radiation from the ambient environment. Without this, the "power loss" is closer to measuring the chicken in deep interstellar space. from a room temperature environment: T=20°C (293 K) and A=1m^2 radiates P=419 W onto the chicken.
The net power loss of the cooling chicken on the kitchen counter is therefore something like 824-419 = 405W, rapidly decreasing as the temperature drops towards room temperature. e.g. at 50°C it's around 200W.