Here is the full proposal for the new stationday file format.

The purpose of a stationday file is to detail the programs or episodes
that are being shown on a station in a given 24-hour period. The times
of each showing belong to the timezone where the transmission originates,
not the timezone where it will be received.

A stationday file must only contain data for a specific daynum.
The data in a stationday file should be in ascending time order.
The data in a stationday file may contain Latin-x characters.

Apart from blank lines, each line starts with a keyword then a
colon then exactly one space character and then the actual value.
The file must begin with these three lines:

StationdayVersion: 2.0
Station: 	Name of the station
Daynum:		Date of the stationday as the number of days since 1970.

These three lines are followed by a single blank line. After this, the
file is composed of a number of "showing" records. Each record is
composed of several keyword: value lines and must end with a blank line.
Some lines are optional and are shown with asterisks below. For the
comma-separated lists, there is no whitespace on either side of the commas.

Title:  	Textual title of the showing
Time:		Time when the showing starts, seconds since 00:00 on the date.
			Both the Daynum and the Time fields are local time in
			the timezone that applies to the station.
Duration:	Duration in seconds
*Episode:	Textual episode name, arbitrarily long, single line
*Description:	Textual description of showing, arbitrarily long, single line
*Year:		If a movie, the year of release of the movie, four digits
*Genres:	Comma separated list of textual genre or genre groups. See
		genretypes for the list.
*Episodic:	1 or 0, indicating if showing is episodic or is not episodic.
		Do not give this keyword if you do not know yes or no.
*TvRating:	Word representing the recommended age group. Available
                words are: C=children, P=pre-school children, G=general,
			   PG=parental guidance, M=mature, MA=mature audience, 
			   AV=adult violence
*Advisory:	Comma separated list of letters which represent advice
                about the showing. Available letters are:
			V= violence, S= sex, N= nudity, L= language,
			D= drugs, A= adult themes, H= horror
*Castlist:	Comma separated list of actor names
*Director:	Director's name
*Season:	Numeric season number, if this is an episode in a series.
*Episodenum:	Numeric episode number within a season of a series.
*Bits:		Comma separated list of words representing other bits of  
                information about the transmission. Available words are:
                	B&W=black and white, WS=available in widescreen,
			HD=Available in high definition, CC=closed captions,
			S=stereo, Live=live, Repeat= repeat, Final=final,
			Premiere= premiere

Each showing record ends with a blank line.