1999 £m	1998 £m
Raw materials and consumables	28.2	23.0
Work in progress	8.0	8.2
Finished goods	21.6	25.3
	57.8	56.5

There is no material difference between the replacement cost of stocks and their carrying value.

15 PROGRAMME AND FILM RIGHTS

	1999 £m	1998 £m
Programmes in production	29.3	22.8
Completed programmes and film rights	124.0	115.8
	153.3	138.6

 
16 OTHER DEBTORS

	Group		Company
	1999 £m	1998 £m	1999 £m	1998 £m
Amounts falling due within one year:
UK and overseas taxes recoverable	4.8	17.7	-	12.6
Prepayments and accrued income	33.0	29.5	7.0	6.5
Contract payments	38.6	33.1	-	-
Other, including Channel 4 rebate	29.1	42.3	-	-
Amounts owed by subsidiary undertakings	-	-	134.1	206.5
Amounts falling due after more than one year: contract payments	50.3	66.6	-	-
Other	22.6	2.9	1.3	0.9
	178.4	192.1	142.4	226.5

 
17 CURRENT ASSET INVESTMENTS

	Group		Company
	1999 £m	1998 £m	1999 £m	1998 £m
Certificates of tax deposit	7.5	7.6	5.5	5.6
Other	1.0	1.5	2.7	1.3
	8.5	9.1	8.2	6.9

 
18 CASH AND OTHER LIQUID FUNDS

	Group		Company
	1999 £m	1998 £m	1999 £m	1998 £m
Cash at bank and in hand	406.6	194.3	87.9	0.8
Liquid financial instruments	3.0	84.5	-	26.3
	409.6	278.8	87.9	27.1

Cash and other liquid financial instruments comprise bank deposits and floating rate notes. All these investments have a maturity of less than one year and are subject to floating rates of interest. Included within these are US$ denominated investments with a book value of £147.2m which are held by companies operating in the US. The remaining balance of cash and other liquid funds is substantially sterling-denominated.